Windows 10: PC shutdown failure: why does my USB Backup HDD prevent a quick Win 11 PC shutdown?

I have build a new PC AMD AM4 A550 MB, Win 11. I connected a HDD as a back-up drive via USB 3.0.As long as I do not plug the HDD Seagate 6TB ext. into the USB port, the PC Shutdown takes only a few quick seconds - so far so normal!When I do plug the HDD however, the shutdown process takes between 4 and 6 Minutes. I wondered what happened to my PC when the shutdown suddenly took so long, until I found a remark in a random forum, that it is a know Win bug, that whenever an external storage device is linked via USB the system may fail to shutdown within an acceptable time.Since this is the numb

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PC is Suffering Unexpected Shutdowns

So its been almost two weeks since i last posted and since my PC has shutdown unexpectedly... My original plan was to play around with the RAM to see if that was the issue but after a few days of no shutdowns i figured i would see if the CMOS clear and repairing the corrupt OS had fixed the issue. As i already said its been almost 2 weeks since i first made theses changes and i was fairly certain it had fixed the issue...Unfortunately my PC did shutdown unexpectedly today while i was at work. It seems pretty ridiculous to me that the PC could be on for almost 2 weeks straight and have no issues then just randomly shutdown...I ran the SFC scan to make sure nothing had gone wrong with the OS and it reported no issues. My next step i guess would be to try and eliminate the RAM as the issue but honestly i find i very hard to believe that's the issue after the PC was on for 2 weeks. Surely if this was a hardware issue i would have more regular shutdowns...or at least shutdown while im actually using the PC...What do you guys think?

 

PC is Suffering Unexpected Shutdowns

Most important detail to me would be whether these shutdowns are sudden, in which case it's likely a short or PSU issue (capacitor aging maybe?) or graceful windows style shutdowns, which suggests software interference.

It could also be overheating components if it's a sudden shutdown. What are your thermals like?

 

PC Shutdowns

Hello

I am experiencing intermittent shutdown of my PC. These shutdowns can occur days apart, sometimes twice in one day. The PC can be running for hours with no problem before a shutdown.
At times it has shutdown within a few minutes from booting. The PC automatically restarts after each shutdown.
I have doubts it could be temperature related as the PC can run for two hours or more while copying many Gbs of data.

On one occasion a shutdown occurred before the Dell splash appeared but again restarted normally.

PC Info: Dell Inspiron 560, OS Windows 10, 4 Gb memory, HDD recently installed 1Tb.

The event viewer only records event 41 for any critical event.
Is there any other information which can be obtained from event viewer?

I have unchecked “fast startup”

I would grateful for any opinions re this problem.

Scottie