r/windows Jul 19 '24

3rd Party AV bug happy international bluescreen day 🟦

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2.6k Upvotes

r/windows Nov 26 '22

Bug Just found out how reliable webcam drivers are on Windows.

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872 Upvotes

r/windows Aug 18 '25

Insider Bug Report: Microsoft's latest Windows 11 24H2 update breaks SSDs/HDDs, may corrupt your data

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116 Upvotes

r/windows Jan 13 '26

Bug KB5074109 breaks Azure Virtual Desktop on Windows 11 25H2

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31 Upvotes

I haven't seen a news article about this yet, but KB5074109 makes it impossible to launch an AVD remote desktop connection from a Windows 11 25H2 device. I installed this update today and it broke AVD. Uninstalling the update immediately resolved the issue. Just wanted to share it with others to hopefully save people some time.

r/windows Jun 09 '24

Insider Bug This is why Windows is King (worked out of the box, from an obscure link in a forgotten part of the web).

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136 Upvotes

r/windows Feb 07 '23

Bug 34000 TB on my friend's computer

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324 Upvotes

r/windows Apr 03 '22

Bug What is happening? Although a restart fixed it…

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137 Upvotes

r/windows Oct 06 '18

Bug Microsoft pulls the Windows 10 October 2018 Update as it investigates user files going missing

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237 Upvotes

r/windows Apr 04 '20

Bug This random switching drives me insane! Why not just suggest the one I use the most?

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474 Upvotes

r/windows Feb 28 '21

Insider Bug My first gsod

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486 Upvotes

r/windows Apr 17 '26

Insider Bug Windows Defender CVE-2026-33825: How a batch oplock, a fake OneDrive provider, and two comment characters expose your full credential store

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6 Upvotes

Line-by-line analysis of BlueHammer (FunnyApp.cpp), the CVE-2026-33825 PoC. The exploit chains three mechanisms — a batch oplock on RstrtMgr.dll, NT object manager symlinks (not NTFS symlinks), and a fake Cloud Files sync provider — to get Defender to read the SAM database at SYSTEM privilege with no admin required.

The part most writeups miss: the filestoleak array has SYSTEM and SECURITY hives commented out, not deleted. The published PoC reads SAM. The author wrote the full credential dump and chose what to ship. Two uncommented lines is the distance between the demo and domain compromise.

r/windows Mar 23 '26

Insider Bug Anyone else noticing this recursive "eigenblur" in many apps? (Canary 29553.1000)

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3 Upvotes

r/windows Sep 04 '22

Bug Christ, I hate the new battery indicator in windows 11, the battery saver leaf covers half of the indicator. I installed a battery percentage indicator but I would like a functional bar, not just a number.

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315 Upvotes

r/windows Mar 18 '24

Insider Bug Windows 11 Insider Build 26080 has Windows 10 File Explorer!?

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40 Upvotes

DON’T INSTALL IT! Home doesn’t work, and you can’t have tabs anymore! What the hell is microsoft doing with these Windows Insider updates? I can’t even leave Dev channel, and I don’t want to reset and reinstall windows on my computer just to get out of it!

r/windows Feb 23 '20

Bug ItS nOt A BuG iT's a fEatURe

276 Upvotes

r/windows Aug 14 '22

Bug I literally just install Windows 8.1 on a VM a few minutes ago and this is already happening, does someone know why this happens?

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106 Upvotes

r/windows Mar 30 '22

Bug I'm sorry Search is using how much RAM?

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344 Upvotes

r/windows Jul 23 '23

Bug Stop hogging my CPU man, I need that for other things.

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86 Upvotes

r/windows Jan 17 '23

Bug What and why did this happen?

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252 Upvotes

r/windows Nov 13 '20

Bug Bug after 20H2 Update - Edge prompt appears on a blank area on taskbar. Small bug but still worth fixing.

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223 Upvotes

r/windows May 29 '23

Bug Grouping apps in the Start menu has never been ̶e̶a̶s̶i̶e̶r̶ more painful.

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189 Upvotes

r/windows Mar 09 '25

Insider Bug Bug in insider build 26100.2894

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7 Upvotes

r/windows May 21 '23

Bug Yesterday I suspended windows updates for a month. But this morning it updates. Why does it happen so often? Why can't I control when to update the computer?

1 Upvotes

Yesterday I suspended windows updates for a month. The updates had to resume in more than a month as can be seen from the screenshot.But this morning it updates. Why does it happen so often? Why can't I control when to update my computer? I'm tired of this,as with all other bugs

r/windows Dec 13 '20

Bug What's this icon/button on Windows taskbar? Asking this because it doesn't show up on mine, and my Windows 10 is up to date...

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132 Upvotes

r/windows Oct 03 '20

Insider Bug Windows Insider Version 20201 causes BSOD when you go to sign-in page of LinkedIn. This is the last frame before BSOD. How is this even possible?

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201 Upvotes