Solved Windows 11 not booting

Since I updated my Asus PN50-E1 to Windows11 I have had no problems whatsoever, it booted up in a matter of seconds, but the last 2 days I have done a clean boot it either took over 1 minute to get to the 4 pane windows icon and rotating dots, and then a few seconds to the login screen or sometimes it just froze and I had to turn the PC off with the power switch and turn it on again to do the bootup again. This morning I can't even get it to boot, it goes past post OK but just keeps switching the HDMI monitor on & off.
Yesterday I checked in Windows updates and none had been done since the KB5004300 last Friday but the problem didn't manifest till Monday. I have not installed any new drivers or apps.

I have just restored my Windows 10 macrium image and the clean booted several times without a hitch so it would indicate a windows 11 problem and not hardware.
So I am looking for advice, but remember I can't get into 11 to try something without bringing back my Macrium image which I do every Monday, but that could be faulty as well.

Since you have the Reflect backup (good job, BTW!), and if you're willing, try upgrading to Win11 again, and see what happens.

• You can see if it manifests again
• You can always revert to the backup again if it does re-occur.

Of course, you're just as fine sticking to 10. 11 is, after all, still only a βeta release - so not everything will be perfect.

johnlgalt said:

Of course, you're just as fine sticking to 10. 11 is, after all, still only a βeta release - so not everything will be perfect.

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Thanks, I was thinking the same so I am going to stick with 10 for now as that gives no problems. Perhaps I will try again later and get another updated preview.

I installed version 22000.120 yesterday and all is well, no glitches so far .

EDIT: I spoke too soon, it started when I put it in sleep mode and it wouldn't come out, nothing worked.
I shut it down with the power button and when I restarted it again it goes past post OK but just keeps switching the HDMI monitor on & off.
So I'm in the same situation I was 10 days ago and back to Win 10 I go. I wonder if my Asus bios needs tweaking but so far nothing from Asus.

Tec numb nuts said:

I installed version 22000.120 yesterday and all is well, no glitches so far .

EDIT: I spoke too soon, it started when I put it in sleep mode and it wouldn't come out, nothing worked.
I shut it down with the power button and when I restarted it again it goes past post OK but just keeps switching the HDMI monitor on & off.
So I'm in the same situation I was 10 days ago and back to Win 10 I go. I wonder if my Asus bios needs tweaking but so far nothing from Asus.

Click to expand...

I've had some sleep problems myself, but those preceded 11 and continue. The motherboard doesn't detect the graphics card on wake. It's very obvious in my system: there is a bright white LED that lights up, and stays lit.

My Asus PN50-E1 uses the CPU's (Ryzen 7 4700u) own Radeon Vega 7 graphics.
It works in Win 10 without a problem that's why I thought it might be Win 11.
I have have just had a bios update for my Lenovo Legion with Win 11 fixes to UEFI boot, that's what made me think it could also be a Asus bios fault.