Please run Memtest86 for 4 passes.
Repeat the test so that 8 passes are performed on each RAM module.
MemTest86 is the original self booting memory testing software for x86 and ARM computers. Supporting both BIOS and UEFI, with options to boot from USB.
www.memtest86.com
The computer has 64GB RAM.
Testing can be performed overnight.
It can take substantial time for 64GB so you can remove 2 RAM modules and test 32GB at a time.
Find a camera or smartphone camera to take pictures and post images into this thread.
Plan to run this command overnight:
Open administrative command prompt and type or copy and paste:
chkdsk /b /v C:
C:\WINDOWS\system32>chkdsk /b /v C:
The type of the file system is NTFS.
Cannot lock current drive.
Chkdsk cannot run because the volume is in use by another
process. Would you like to schedule this volume to be
checked the next time the system restarts? (Y/N)
Type: Y