No idea why my pc is BSOD randomly.

[killertu]

It seem my pc giving me BSOD for the past week now,it was extremely slow until I use CHKDSK but still giving me BSOD. I couldn't find any virus in Malwarebyte or rootkit using TDDSKILLER. I can't turn on my Windows defender and can't download on windows updates. WIndows Memory Diagnostics detected no errors. My harddrive seem to disappear after using Windows Defender Offline until I remove and put the hardrive back.

As of now,I have no idea what else to do. It run adequately fast now but still randomly bsod or when turn on steam.

 

[killertu]

W10?

No,windows 7

 

[imrazor]

Sound like either malware or a hardware problem. If CHKDSK improved your system speed, you might have had a corrupt file system that needed repair. However, if it's a hardware problem it won't magically go away and your hard drive may eventually completely fail. Download Crystal Disk Info from here:

http://crystalmark.info/software/CrystalDiskInfo/index-e.html

See if it reports any errors.