Top Ten Worst Operating Systems

The Top Ten
1 Windows 8

Did Microsoft even test this with laptop users? Surely even limited tests with users would have shown that it's unpopular. They've tried to make an OS that is suitable for laptop, tablet and phone an instead created something that is awful for all of them. It beggars belief that a company with so much money is capable of creating something so bad.
To add insult to injury the Microsoft 'how to use windows 8' guides are worse than the product, if that's possible and trying to contact support is a waste of a lot of your time. There is nowhere to get real support or even make a complaint.

But then Microsoft isn't like most companies, as they have a monopoly; If Microsoft didn't have a monopoly, no one would choose their product and they wouldn't exist.

From my professional IT experience, the two most important pieces at least to an average user is to be able to access the old Start menu and be able to connect to internet. In Windows 8 both of these features "Start menu" and "Manage wireless networks" have been removed. Sure 8.1 added the Start menu back but it's poorly designed and doesn't give you all features back. You are still limited and forced to use the new interface for some features and programs. How can they expect an average non-technical user to get around and learn this system when folks in IT have to struggle with some features?

Furthermore, connecting to wireless and managing wireless profiles is a nightmare and you often fall back to third-party utilities, not to mention "limited or no Internet" connectivity issues with the new Network Manager utility. It gets even better, try accessing pictures from the so called Metro UI --it defaults back to Pictures folder and does not allow you to browse outside of it! ...more

Windows 8! The slowest piece I have ever owned! When you're on internet explorer, it's always freezing and having stupid runscript errors, or even crashing sometime, regardless of it's conditions and specs. And don't even get me started on it's lack of ability. You can't download things from the web, or run EXE files! It just gives you message that says "This app can't run on your PC". You can only download stuff from what they call, the Windows store. The windows store is simply the worst app store ever! It's missing thousands of downloadable programs! Even the most common. It even lacks a lot of mobile apps you find in the apple store, or the Google play store. It's even missing the most popular, most common apps like temple run, five nights at Freddy's, Facebook, and subway surf. Instead it only has really lame apps. I have been checking the play store for two years now, and only found 5 good apps so far. And That really sucks. What good is an OS that is constantly crashing, has ...more

Window 8 is the worst OS ever. Gates is asleep at the wheel and the bus is driving over the cliff. What were they thinking? I bought an expensive Asus laptop and I use it a paper weight because this os is so bad. Thank goodness automakers didn't decide to do something like this; the equivalent would have been putting the steering wheel in the back seat facing the trunk and trying to turn your head around to front to see where the heck you are going. It would be great if you were always in reverse going backwards, which I guess is where Microsoft wants to go.

2 Windows ME

Pure garbage of an OS. Attempting to Install this operating system typically results in endless blue screens, and cursing. Think a Windows 10 reboot loop is bad due to a forced bad driver update? Windows 8 with it's radical new user interface? Those don't even hold a candle to all the hidden surprises in Windows ME. If you are a lucky one to actually get this OS to install expect it to crash rather often. Many device drivers were unstable, and closing applications would leave quite a bit of garbage in the system ram slowing it down even further due to the OS not being capable of managing memory properly. Even if you do get somewhat decent drivers this OS has so many flaws that even Microsoft threw it under a rug as fast as possible with Windows XP. They could not fix it. I bet even their development team for this ran into issues during beta testing. Have this OS on a work computer back in the day? Step away to grab a cup of coffee only to return to a crashed OS with all your saved ...more

Why is it every time a new Windows operating system is released, people claim it's the worst ever? Windows 7 until the problems with Windows Installer, Windows Update issues. I do question the timing of these problems Windows 7, does anyone else?. Vista? You have got to be kidding me with that. Vista did not get a fair chance. I bought my new computer with Vista installed - I never had a problem with Vista. Windows ME wins hands down for the worst. I have NEVER had so many problems installing an OS. They should have named it MC Microsoft Crash, that's all the system did. I thought the blue screen was a new feature! (Kidding) Very unstable, there was no fixing it. It was so bad Microsoft should have tracked down every poor soul who purchased that dung. Secret teams should have been dispatched to apologize, giving us double our money back refunds. We should have got XP for free. It was a nightmare, I used to joke with my dad, if he kept bothering me, I would install ME on all of his ...more

I own three legacy machines. One from '98, one from '99, and one from '00. I have tried to install Windows ME on the latter two, and it didn't work at all. Halfway through the installation process they both blue screened, and many hours of messing with BIOS settings and swapping out different parts in the computers did nothing to rectify the problem. It actually managed to install on the first one, but every time I tried to install a program that worked fine on 98 SE, there was some kind of error, not to mention it ran Scandisk every time it booted. 8 and Vista are nasty, but ME is a special kind of terrible. I might as well have been trying to install Mac OSX on those machines.

Windows Me was aimed at the consumers right? Well that is why my family bought it back in 2000. However their were a lot of critical flaws. First off they cut out real mode dos so you couldn't acces DOS mode, Microsoft also got rid of Microsoft fax, and fat32 support, and anytime you did an improper shutdown it went ahead and fired up scandisk. That would be super annoying for anybody who used it. And the main reason why every body hated ME was it was just so buggy it crashed all the time. If you used plug and play or put in a device 50% of the time it would blue screen I am not joking it was they bad.

3 Google Chrome OS

I like Chrome OS very much. It's true that it is very minimalist, being just a kernel that brings you to the Chrome browser. However, I love it! Quick boot time, instant updates, and no viruses. You can use Google drive for storage, or store local (or on a USB stick). I use Google Docs and Google Sheets, which read and write Microsoft Word and Excel files. It has great performance browsing the web, which is most of what I do at home. I have Windows 7 running on an ancient Dell Latitude D620 that I upgraded to 4 MB RAM if I need anything else.

The worst operating system. How is Windows 8 above this? At least Windows 8 can do more than just browse Chrome. I've used this and Windows 8, and while Windows 8 has its downs, it's nothing compared to this. If you need to hold a useless meeting, this is the OS. If you wanna use Facebook and retweet memes that were funny 10 years ago, this is it. And their ads are heavily annoying.

It will slow down over time almost to the point of being unusable and the thing crashes on me when I have 2 or more news articles open. Oh and I have gotten more viruses through Chrome OS than I have through Windows XP and that is saying something. And after my first year of using the thing, the OS has been getting more and more buggy and unstable than any other OS I have ever had the displeasure of using, and I HAVE used Windows Vista for a solid 3 years.

Among the worst OSes I have ever used. Everything runs in Chrome, already a terrible browser, and half the time it, doesn't even work right. It's difficult to even do simple things like research projects on Chrome OS. It requires a browser to edit a text document, restricting us to the sad, sad word processors like Word Online, or worse yet, Google Docs. I hate it, I hate it, I hate it. Even Windows Vista (without service packs) is more useful than Chrome OS

4 Windows Vista

Ok ok enough. Windows Vista is far from worst. Windows 8 and ME crashed way more. The complainants I have with Vista is the bad installer, making it very hard to re-install or update to a newer SP. The thing about its negative rep is that it would not run right on XP and before systems making it bad. If you were like the people who bought it or still buy used computers with it you would know its not that bad. I have used Vista for years with out getting a single crash, and very few times where I had to hard restart my computer, unlike my other computer running 7 which is worst but just to say, I have hard rested it at least once a week from running my Web Browser, Skype, and Steam at the same time, along with a few other things.

Windows Vista is my worst Windows I have ever had. Do I need to explain here? It's self-explanatory. I can't believe I got an old 2000s Sony Vaio laptop that I had to use (after my 2011 Dell Inspiron laptop broke back in 2017), but I no longer use this laptop after I got a much more superior Dell G7 on Christmas of 2018.

I also think Vista was the worst ever OS developed by Microsoft. The OS was so slow that adding needed softwares was virtually out of the question. Disk cleanup and defragmentation didn't do any good to speed up the system. I have worked with windows ME, 8 and 8.1 but nothing comes even close to vista in terms of bugs, boot-up time sluggishness, crashes and... In my book, the best Microsoft operating system is Windows 7 followed by Windows XP, despite being abandoned by Microsoft.

I started an old computer I had back up to get some info records off the harddrive. Had vista on it. started up problem problem problem, then I tried to hook a printer to it, problem. an older printer to it, problem. a usb drive to it, problem. Always some portion thereof that has some problem, like trying to get a dvd to run, media player codec problem on the inst video. that halts it from installing. Microsoft should have been required to refund everyone that had any version of vista. Whats funny is the old printer and new printer both work on my windows 7 laptop. they should a just let ya download 7 and use a vista id number.

5 iOS

This should be number 1! You cannot do anything Apple gracefully give you permission to do. You are only allowed to install programs from their App Store combined with most programs I use everyday not being allowed on the App Store makes it horrific! You also can't perform file management, which I should be able to do with ANY operating system! You also must have MEGA or Dropbox in order to transfer files, and don't forget that you can't manage the files being transferred to your phone! Oh but I can't uninstall it because iPhones must have iOS for calls and texts! It's so bad, there even exists guides to install Android or other operating systems on iPhones! People that say this is secure basically say locking themselves in a house and never coming out is the safe!

There's stupid Android users pointlessly setting a goal to abandon their beloved Android just like that! There's stupid Xiaomi fans pointlessly setting a goal to abandon their beloved Android UI just like that! Many poor have dreamed for what?
Brands that just exists in their mind! Brands like Xiaomi gave them everything they want. How about those rich who were tired of Samsung and Apple? Waiting to be poor! In order to enjoy what Xiaomi offers, or even enjoy Stock Android. At least iOS can't be altered, gives users a peace of mind, unlike Android that is in the big mess. But I still prefer Android and stay away from Samsung, no matter what happens to me.

One of the most stupid products made for stupid people. You need to pay to get your own content stored into your own device. Unless the user is so dumb and stupid and running on father's money, no one should need to do that. There is no use of iOS other than paying apple. And intentionally blocks any third party development to make it useful in anyway. Extreme waste of hardware on an extremely restricted software that doesn't do anything but sending money to apple.

Most stupid thing ever, I mean you can't do anything useful with it, anything that runs it is totally overpriced and you need to pay heaps of money for a developer's licence. Also, Apple pulled off a Tom Buchanan on the App Store, trying to be beyond the law by deleting apps like screen recorders and emulators that are perfectly legal and people put hard work into writing them. Hate apple. #2 worst OS is Mac os X by the way. PC master race.

6 Red Star OS

If you think that Windows 10 is the worst OS of all time then you've never heard of North Korea's own Linux distro that blocks stuff that North Korea finds offensive. This really should be #1 because of that.

So Windows 10 is worst than Red Star OS. Okay then.

7 Windows RT

This pile of vomit is worse than anything I've ever used. I used to own a Surface RT, I got it from school when I went there. Holy hell it was a miserable experience. Saying that they already upgraded all their PCs to Windows 8, which sucks, not going to lie, at least I could customise them somewhat. Not with Windows Real Travesty (RT) which was used on earlier models of the Surface before Microsoft abolished it to the fiery pits of hell along with Windows ME, where it belongs.

You can't do anything with Windows RT. Download Google Chrome to replace Internet Crapsplorer? Nope. It ain't happening. Actually you can't download anything from the World Wide Web which is plain awful. You can only download applications from the pathetically small Windows Store on the device. Also the applications aren't tailored for a touch interface. Trying to press those tiny buttons with the finger on Microsoft Word? Torture.

Simply put, Windows RT is a version of Windows 8 which is ...more

It's literally just the ARM equivalent to Windows 8, which itself is a piss poor OS.

Who uses either one when Windows 10 (which is actually good) exists?

Well done Microsoft, yet another user annoyed to the point of cardiac arrest.
I'd love to be able to sue these idiots for taking years off my life all because they can't keep stuff straight forward, functional and in the best interest of the user.
I will never buy another tablet from these morons.
Nothing short of theft.

Windows rt is pointless, your stuck with internet foreveraloneexplorer until opera mini comes out
Be careful finding the difference between windows 8 and windows 8 rt. Windows rt is just the same as windows phone, but with no phone stuff, I want the surface pro 3 because it has normal windows 8 but I can't really be bothered to get a newlaptop now since mine is now fine

8 Windows 8.1

Absolutely crap system. I thought Windows 8.1 was supposed to be an improvement but it's just a con.
It won't load programs that I easily used on windows 7.
Won't open Citrix.
Won't open Microsoft Office Home and Student 2010 edition.
Outlook on this is dross and takes so much to get to different email addresses.
I use a desktop pc. Don't need or want a laptop, tablet or smartphone.
Microsoft company should be shutdown or at least the people that thought up windows 8 and 8.1 should be sacked, never to be allowed to work with computers again.
Worst OS ever for ease of use.
Takes 6 or 7 times as long to try and find what I need and even then it is not always possible to be able to use it or even find it.

Tried it, it hogs too much memory. Checked resources and even with machine idle it was still using between 34%-42% memory usage, which is insane to me. Help/support for win 8.1's endless problems is nonexistent. Tons of useless apps splashed on the start screen (can you even remove them? ) It doesn't feel like an os, it feels like your phone placed on your pc. Everything is slow, don't bother buying it if you have 4gb of ram or less bcs you will lag like I did. Everything from a simple restart to a file search requires multiple clicks, sometimes going into an app to get to another app and then finally search or do the thing you originally planned. Very inconvenient, clunky, almost ugly. Login screen is simple and boring. I didn't try win 8, and I heard it's worse so I definitely will not try it in the future. Overall I'm very disappointed that I wasted money buying this and that I have to switch back to win 7.

Windows 8.1 is only a slight improvement over Windows 8.0... it's still practically unusable for business. Access to information that was one mouse click away in Windows 7.0 is now two or three clicks away. It may open and shut down faster, but there is nothing else fast about working in the Windows 8.1/8 environment. I've used every Microsoft OS since 1984. The best so far have been Windows 7, Windows 2000, Windows NT 3.1 - 4.0 and Windows 98/95. The worst have been Windows 8.1/8, Vista and Windows ME. I am surprised that Vista and Windows 8 have not been franchise killers.

Because as everybody knows that first you make an OS for desktop, laptop, netbook and then you make a different one for tablets and phones. That's the way it is! And stupid Gates must learn some time that he isn't and he will never be Jobs, who was brilliant enough to separate platforms. Gates wake up do something and just do it right for once and everyone will follow! Long live Win 7 Ultimate for ever! Let's hope that Win 9 will be as good and simple as Win 7!


Dumb and stupid usability of OSX or MacOS X makes it completely useless. The unix shell could be useful but lacks a proper package manager, everyone had to use a third party package manager like homebrew to install anything, all of which are extremely primitive and not user friendly. The graphical user interface is so stupid that it doesn't even show which applications are open properly, it shows small dots at the end of icons in dock, that does not indicate the number of windows open, so can't switch between windows of the same application. It is utterly confusing to maximize / restore or minimize a window, where does it go. All application files are hidden away, in a maze of dirty file structure with hundreds of wrong directory permissions, for example user doesn't even have full writes in their own home directory by default.

Overrated, stupid, the opposite of user friendly (actually apple tries constantly to make it all more difficult for the users), slow and with a lot of problems compared to Linux and Windows 7, over-expensive, did I mentioned slow?.. Wayward like an old man on a bad day... The list could go on forever.

I wished I threw my money in the garbage instead of buying that cancer.

I switched from Windows about 6 years ago. At first Macs were much more stable than windows based systems, but now I find my Mac computers freezing. I usually end up having to restart 4 to 5 times a day. Sometimes force quit will work, but often not. Why has a good operating system deteriorated so badly. This is happening to all the Macs I work on, with different Mac OSs.

Peple are so stupid:

I NEVER had Any problems with OSX. It just works! I dunno what you guys are doing on it

You don't pay for OSX. You pay for the hardware. I would never use Windows 10 THAT COST MONEY.

Very user friendly and I barely had any viruses. A mix of antiviruses in Windows discovered +10.000 viruses in 5 years (Seriously. Not a joke).

So yeah OSX wins.

10 Windows 10

I've been running Windows 10 for the past 5 years (since 2016, when it was force installed on my old PC and replaced Windows 8.1, which at the time, I saw as an upgrade), and during those 5 long years, I've grown to resent Windows 10. My chief complaint is, of course, the forced updates. There was one time I was in the middle of playing Terraria, and out of nowhere, it updated! Not to mention it took an entire freaking hour to update. Other than that, Cortana sucks, Edge was awful until around 2020, and even then, it's still mediocre now, it's slow, it's delicate, it's restrictive (what happened to the DVD burner? That was a cool feature from 7 that they just removed for no reason), the search bar has freaking ADS for some reason, and it's a MASSIVE downgrade from great OSes of the past like Windows XP and 7. Here's to Windows 11 being an improvement.

I've been running Windows 10 for the past 5 years (since 2017, when it was running on on my modern PC and replaced Windows 8.1, which at the time, I saw as an upgrade), and during those 5 long years, I've grown to resent Windows 10. My chief complaint is, of course, the forced updates. There was one time I was in the middle of playing Heroes of the Storm, and out of nowhere, it updated! Not to mention it took an entire freaking hour to update. Other than that, Cortana sucks, Edge was awful until around 2023, and even then, chrome freezes, it freezes, it's slow, it's weak (what happened to the CD burner? That was a cool feature from XP that they just removed for no reason), the search bar has ADS for no reason, and it's a MASSIVE downgrade from great OSes of the past like OS X El Captian. Because Windows Sucks.

Windows 10 sucks mainly because of its forced automatic updates. ... However, Windows 10 changes its update strategy and always forces you to update to the latest version and install the latest patches. Microsoft does this thing to let you get the best features available every time.

-Forced upgrades on older Win 7 and 8 versions.
-Laggy and poorly optimised.
-No control over the frequent updates that mess with the work done that was needed to run Win 10 optimally.
-It needs constant maintainance to deal with a plethora of driver and other compatibility issues.
-Relentless and dreaded 100% disk usage with no earhtly fix.
-Old games are no longer compatible with Windows.
-Problems persist on a completely new machine or an old one with a fresh install. So OS is to blame.
-Lots of useless bloatware and programs running in the background.
-Cortana is an overengineered pos, bring back the basic search function.

I've had my issues with Win 8, but it was better, XP and 7 were a pleasure to use. I've lost my patience with this product and have moved to install and run Linux on another machine.

The Contenders
11 Incompatible Timesharing System

The security is nil. Anyone can hack this operating system, so don't use this. (I know it came out in the late 1960s but I can see a OS that has better security and it came out before this OS)

Is the most unsafety os of all time. Anybody can hack it. If you scare of hacker NEVER use that wastebacket.

12 Apartheid Linux

Avoid this at ALL COST. It has a lot of offensive stuff in it. I love Linux itself but this one is terrible.

13 Symbian

Symbian was awesome back then, but after Google Mafia start with Stupid Android, Symbian removed...
Symbian was far better than Android, never get hang not crap like android.

It was good back there in 2001-2009, but now...

Nothing to do here.

Never used it, but utter crap.

14 iPadOS

Apple made an OS to "attempt to" address the problems with iOS. But it falls so short! There is now a user-accessible file system, but you can't even access all local user directories! A lot of problems with iOS are still in iPadOS like only being able to install apps from the iTunes app store, which lacks a lot of useful software you'll find on Android and Linux, and the absolute requirement of an Apple ID account!

It's basically some hybrid of OS X and iOS (both of which are heavily flawed), and is no better than either one of them.

15 Red Flag Linux
16 JavaOS

Almost no one has heard of the one. JavaOS is, as the name suggests, written in Java. This was in the late nineties, though, so Java was slow. Oh and javaOS was pointless.

17 Windows 1.0

This is 1.0 which was released in 1985, not 2015. Anyhow it didn't have that many programs and was confusing to longtime command line users. And it is not an OS, but a graphical shell for MS-DOS.

This is actually an operating environment, not an operating system. Anyway, Windows 1.0 was considered bad even at the time.

This was made before the internet existed, idiots...

Windows 1.0 is NOT an operating system. It runs on DOS.

18 Firefox OS

The worst ever from Firefox.

ZTE did a terrible job of making the first Firefox phone, it's just bad

19 Blackberry OS

It's the worst mobile operating system. I tried to upgrade to iPhone but my mum won't let me have it. And my dad forced me to have Blackberry so I am stuck with this garbage.

I had a blackberry before and every time I attempted to use this operating system I wanted to chuck it out the window and run it over with a car.

Bad UI. Poor app support. Made for people who want to pay even for stupid apps. So secure that not at all user friendly. Hangs. Restarts.

This OS is easily hacked

20 IOS 7

It's not that bad but Apple could have put the options to put the Classic iOS 6 theme.

Really apple? Try again, I get headaches from looking at your interface.

The ugly flat theme of iOS 7 burns me out. I would rather use iOS 5 than stupid iOS 7.

IOS is the worst. You might as well put it second right below windows 8.

21 MS-DOS 4.0

If you love text based operating systems and your favorite company is Microsoft, you would use this, I mean why would you use it? It's just a giant command prompt that all the versions of Windows have, Microsoft, please get better by keeping Windows 8 and building off of it.

It's a DOS what do you expect?
It wasn't that bad

Biggest pile I've ever seen.

22 Eeebuntu

That's not an Ubuntu misspell, it is bad, and it is now Aurora.

23 Windows 2.x

Windows 2.03 is not the worst OS. Also, I have never used it. And, it now includes a maximise, minimise, and close buttons. But it now has task overlapping (like todays versions of Windows) Also, Paint still looks like Windows 1.01, STILL!

Windows 2.x is not an operating system, but rather an operating environment. Same with the other DOS-based versions of Windows that were released before Windows 95.

Without Windows 2 you would still has a 1.0 interface with no multitasking.

24 Ubuntu Satanic Edition

It should be called "Ubuntu 10.10 rethemed".
Yes, it's rethemed for satanists, if you use it you'll actually go to hell.
Is programmist, who created ubuntu was satanist?

Wow this is a thing.

25 Lindows

This is what happens if you put win ME and Linux together.It can't run even 1 program designed for Windows.That is why Microsoft brougt them.

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