Windows 7 suddenly freezes, how to find what's wrong?

Question

Windows

Good afternoon, I have a computer on Win 7, problems started: it suddenly freezes and does not respond to pressing.
Reboot via reset on the case does not help - it loads and hangs at the moment the desktop is loaded.
It helps only a complete shutdown, through the shutdown button.
The first thing they did was demolished Windows and reinstalled - it did not help.
Tell me what can be done? Don't throw away your computer.
Maybe there are some test programs that will somehow test something.

Answer 1

Analyze memory.dmp and see which driver causes Windows to hang. Just yesterday, I had a similar problem, on my note, though Windows 8.1. I updated the latest chipset and bios. While the flight is normal.

Answer 2

Check the memtest RAM, check the mhdd screw, replace the PSU, test everything from under DOS, try working with a live system, either linux or Windows, disassemble the system unit and rebuild it, it might hang somewhere short,

Answer 3

Tests and error corrections HDD
RAM test
Try to take it to the diagnostics, they will figure it out faster.

Answer 4

According to the symptoms, it looks like a banal overheating - install Open Hardware Monitor and see the temperature readings.
If everything is normal here (at least up to 60 degrees), then it is worth installing S&M and doing a full PC stress test to understand which component is failing.

Answer 5

We ran all the tests: opertivka, screw, everything was OK.
Reinstalled Windows. Hangs up.
The reason has not been found. Bought another system.