Am in need of urgent advice before I trash the comp. Please forgive me if I sound unclear because I have not been much of a tech freak. I first noticed that my pc was getting noisier about a month back but did nothing more than a system defrag (yes I know, lazy me). Back then I was having me exams and so I did a transfer of the world of warcraft folder to an external hard drive. Alas when I was in the midst of transferring the wow folder the system hanged and I got a blue screen. Did a hard reboot but the system couldn't power up, there wasn't a prior system restore point so I tried reformatting the hard drive but the OS couldn't load. On my 3rd try i managed to reinstall the OS but the pc continued to be sluggish as though i hadn't reformatted. Dskchk failed and so did Scandisk. Also, when I tried defragging I got a blue screen. On Bios my hard drive self test has also failed with error #01-07. I ran several antispyware programs, and then tried doing a defrag with Auslogics which succeeded partially before crashing as well. After doing a chkdsk/r on boot I am now able to defrag but the pc continues to be sluggish.
Performance of pc has also deteriorated such that when playing media like songs, videos and online streaming I notice an intermittent "kicking' or "jumping" every few seconds. When i tried to load my WoW game, I have crashed with an error 134 which I have found to be cause by a failure to read data. I have tried reseating my hard drive and memory cards and done a memtest which gives an all clear on the ram. I have done a SMART test on the hard drive which shows that my hard drive is still on a 58% performance with 38% heating. Cooling wise my pc is near a window and my fans are working. Can I assume that it is not a hard drive mechanical failure cause I do not hear a clicking sound (although I can hear the hard drive struggling at times to read data). I have updated all my drivers and video cards after reading in the forums that it could be a driver error but the problem continues. Would I be right in saying that it is a bad sector problem? If so should I go about doing a HDD regen or would it be recommended to ghost my OS and replace the HD? I am afraid that the problem could be with software and replacing the HD would not solve the problem. In such an instance, I would only corrupt another HD which would be an absolute nightmare.
Please do advise on what I might do to correct this issue. A week without WoW is [bleep] for someone like me and I would appreciate all help in resolving the matter. Many thanks in advance.