Win10 Randomly wants to shut down

Welcome to tenforums.

Your PC seems to be from around 2011, so is old (great- good for the environment) but of course unsupported/not guaranteed for Win 10.

The forum clearly prompted you to specify your full build number (winver) - why? So we don't have to keep asking. Thanks.

Recently my PC wants to shut down randomly.

Is this
- a sudden and abrupt shut down
or
- a graceful shut down?

Have you checked temperatures?
What does your resource usage look like (task manager)?

To separate hardware and your O/S, create a live boot disk (Google that, e.g. Hiren's, Bob Omb's...)

Boot your PC from that into what will look like Win 10, but not from your internal disk.
Leave your PC for 'long enough'.
If it shuts down, must be a hardware issue.

You can run hardware tests.
Check your disk(s) - no specs- e.g. Hard Disk Sentinel (covers SSDS) is excellent. Functional trial/giveaway.
Check RAM (Tutorial available - from the huge searchable Tutorials section).

Hi Bob,
I know you said that your PC shuts down Randomly, but, NO Computer does anything at "Random".
PC's run on program CODE. However there are mechanical/electrical things that can cause a PC to shut down.
Several things that I can think of, would be a loose power plug at the wall. Or even a BAD power cord.
Or, once inside the PC, loose connectors can cause a shutdown. And finally a failing PC Power Supply can cause a shutdown. So, if you're going to try to troubleshoot this problem yourself, Open up your PC and disconnect all the power plugs, and re-connect them securely. And if you can look into your PSU (power supply) see if it's full of dirt, dust, etc. and see if the fan turns freely.
I've been a PC repair tech for 40+ years, and I'd love to be able to examine your PC myself.

Cheers Mate!