Hitachi HDD Slow Down & Bad Sector

Hello
a while ago when i was attempting to back up my computer by using Acronis TrueImage i had seen following error
"failed to read sector xxx,xxx,xxx ..." a while later i've experienced heavy slowing down when i was installing a software i've turned the computer off and after that when i went to windows i've seen a BSOD with following error
"Registry File Failure..."
so i assumed that my HDD has some bad sector so i've ran HD Tune
in error scan tab there were some damaged segment and in Health Tab "reallocated sector count" was yellow but its status was OK
however i've used SpinRite to recover bad sectors but it wasn't successful
now it takes too much time to boot windows vista ( a fresh install !!) and after that it start to check my drives (c,d and now c,d,e) it delete some index and recover some files and also says some files aren't readable
i feel that slowing down in windows vista too
however i've been using this HDD for around 2 years

btw what's my problem ? what should i do ?
can i use this HDD anymore?

sorry if it was too long
Thanks in Advance

 

Sounds like a bad HD. You can swap it out and you'll know for sure. Jazz

 

Thanks for reply

you mean that i should buy a new one ?
that hdd isn't usable for back up even?

 

If a HD isn't reliable for an OS and data why would you think it would be reliable as a backup. I think I would make sure I don't lose my data, and or cause my system problems with a faulty HD of any kind. You may be able to salvage some data off the one but it's a difficult procedure, (which is why it usually takes an tech qualified in the process), or try cleaning the entire disk by zeroing it out to see if that clears the problems up. HD's fail.If there's a warranty on it, and sometimes there is, you might have the manufacture replace or at least give you a break on price. Go online and find the number and call them. It's worth a shot. Let us know, Jazz

 

well i thought its problem might not be that critical and it's solvable
btw i've bought a new hdd and mounted it beside my old hdd what kind of problem it cause ? (i've removed all of the partitions on my old drive)

btw i couldn't use its warranty...

 

Best you can do is try. But if your backup drive is bad and you store any data on it you're likely not to have it at some point. It's also a piece of hardware which means if it decides to give up entirely your system will notice the problem. Jazz