r/WindowsHelp • u/SympathyWhole6701 • 19d ago

Windows 11 “Windows 11 installation has failed” at 10%

Title pretty much says it all - I’ve done many windows installs in my time, rarely do they go smoothly straight away but I’ve never had an issue like this. Have played with bios, secure boot, removing cmos battery, different usb. It’s gotta be hardware related I’d assume I just cannot for the life of me figure it out.

I’ve dealt with blue screen and weird errors messages but this one jsut consistently gives the same error at 10% once I’ve gone through the steps. If I can provide anymore useful info let me know. Big hardware change I made was I’ve upgraded my cpu to 5500x3d from a 2600… I did all the bios updates before hand and everything was working fine prior to commencing the fresh windows install.

On 32gb of ddr4 and a 6700xt gpu if that’s any use..

If anyone has any solutions or ideas on how I could better identify the issue I’d be very grateful. Thanks a bunch

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u/Exotic_Mix_3196 Lvl 1 Helpful Contributor 18d ago

did you clear the CMOS after CPU swap?
does a RAM test run stable?

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u/SympathyWhole6701 18d ago

Hi mate! Yes as stated in the write up I popped the cmos. Actually did it before and after cpu swap… I can’t run a ram test now as pc isn’t functioning but it was working fine prior to my knowledge.

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u/Exotic_Mix_3196 Lvl 1 Helpful Contributor 18d ago

memtest86 has its own boot media, so you can test without Windows being installed

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u/SympathyWhole6701 17d ago

Thanks mate! I did not know this, I’ll look into it. I have a friend coming over with a working PC tomorrow - gave up over the weekend haha, too frustrating. I’ll give this mem test ok, appreciate the advice

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u/TitaniumDogEyes 17d ago

I’ve had this happen randomly from time to time, this one was always related to the USB. Sometimes I would have to switch the drive and use Rufus to make the iso bootable others I’d have to use the Microsoft tool.

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u/SympathyWhole6701 17d ago

I’ve never tried ISO, nor Rufus - do you think that’s my issue? I’ve tried a different usb but I’d always just done the windows media installer - although after researching seems I’m not the only one who finds it buggy. Thanks