I need help .Since Ten days back one of my windows pc (os 8.1 x64) won't boot. The computer shut down(BSOD occured) suddenly when I was browsing . After that i showed " Reboot And Select Proper Boot Device " . I saw the bios settings whether HDD is set to be the primary boot device but i didn't found it .Also in the bios i saw no hard drive detected .Two days later i cleaned dust inside the CPU , took out my 2 ram sticks and inserted them.After that i started the PC and it worked fine . Some of the files were not backed up.So I started backing up. But i was very busy that day and i shut down my pc and left my room .They next day I switched on the Pc and started acking up . But again BSOD occured . i was unable to see BSOD messages as auto restart was enabled by default.After that i have not been able to start the PC .Every time with normal boot or safe mode BSOD will occur. Still some of my docs and downloads were not backed up. I have decent sort of knowledge in software but i am very bad dealing with hardware faults.I called one of my friends who have repaired a lot of windows pc. We didn't try any linus cd. But we tried to boot from genuine W8.1 and even W7 cd s.Every time during installation the PC froze. During initial attempts the partitions showed but after that it disn't show. We have changed both the ram sticks,tried booting with only one stick ,changed DVD/CD writer but nothing worked . What can be the problem - the mobo or the hard drive .I am very angry with myself. Some files still not backed up.I am cursing myself
I took the drive to another pc and it was not recognised.Should i change the hard drive or the mobo ( power was reaching all components).Is there any great software to recover the HDD
The day before the Pc stopped functioning I was downloading a p2p file(i don't download torrents often) .I was constantly getting "Write to disk error.Access denied". However i scanned it with EIS,mbam and zemana and everything was fine .Please suggest me what to do . Please help me to sort it out