Sounds like either hard drive or memory problems. See if you can run a disk check:
chkdsk C: /f /r /x
Above is for Win 10 but the only difference may be in how to open an elevated command prompt:
It should take several hours to complete after you reboot.
Test your memory:
IF both complete then:
Open an elevated command prompt:
If you open an elevated command prompt it will by default open in c:\Windows\system32
Once you have an elevated command prompt:
Type(with an Enter after each line):
DISM /Online /Cleanup-Image /RestoreHealth
(I use two spaces so you can be sure to see where one space goes.)
This will take a while to complete. Once the prompt returns:
Reboot. Open an elevated Command Prompt again and type (with an Enter after the line):
This will also take a few minutes.
When it finishes it will say one of the following:
Windows did not find any integrity violations (a good thing)
Windows Resource Protection found corrupt files and repaired them (a good thing)
Windows Resource Protection found corrupt files but was unable to fix some (or all) of them (not a good thing)
Which does it say?
findstr /c:"[SR]" \windows\logs\cbs\cbs.log > \junk.txt
Hit Enter. Then type::
Copy the text from notepad and paste it into a reply.
See if you can download now:
1. Please download the Event Viewer Tool by Vino Rosso
and save it to your Desktop:
2. Right-click VEW.exe and Run AS Administrator
3. Under 'Select log to query', select:
4. Under 'Select type to list', select:
Then use the 'Number of events' as follows:
1. Click the radio button for 'Number of events'
Type 20 in the 1 to 20 box
Then click the Run button.
Notepad will open with the output log.
Please post the Output log in your next reply then repeat but select Application. (Each time you run VEW it overwrites the log so copy the first one to a Reply or rename it before running it a second time.)