Windows 10: How can I stop both of my computers from shutting down randomly?

I have two home pcs. Both running Windows 11. Each one has started shutting down randomly , sometimes after a few minutes, sometimes after an hour or so. Updates are current. Please help.

:)

 

Laptop randomly shuts down after latest Windows 10 update

Since the latest update of Windows 10 my computer decides to randomly shut down after every couple of minutes. First the screen goes black, then the sounds stops and after quite a while the power also goes down.

Obviously I though of cleaning the fan with a big vacuum, as suggested on My Windows 10 Computer Randomly Shuts Down . However, after doing this, the shutting down goes even quicker. I cannot even properly log-on before the shutdown takes place.

What should be my next step?

Ps. The computer is quited aged (roughly 3 - 4 years). The battery is dead enough such that I always need to have it plugged in an outlet. It might just be "done for" but I'm hoping to revive it for just a little bit more.

 

My Computer Keeps Shutting Down By Itself But Not Infected Or Hacked.

Hi Ethan,

There several reasons why your computer is shutting down automatically. For us to provide you the proper troubleshooting steps, kindly answer the questions below:

• Were there any changes made on your computer before encountering the issue?
• Are you encountering an error message when your computer automatically shuts down? If so, what is the error message that you're getting?
  
• Does the issue occur when you're performing a specific task on your computer or does it occur randomly?
• What are the troubleshooting steps that you've done so far?

 

Random shut down and restart??

Computer: Intel (R) Pentium (R) Dual cpu
E220@2.406hz
2.42 GHZ, 2.00 GB of RAM
Windows xp

Ever since I replaced the fan (with heat sink) the computer has randomly shut down and then restarted, at first during streaming, and now, will shut down and restart anytime. I tried to replace the graphics card to no avail. *Confused *Mad

One suggestion was to replace the RAM.

Any suggestions on how to repair my computer?