Windows 7 - Best HDD repair program?

Hi I have old HDD that shows some bad sectors can you please tell me which program is the best to repair it? Thanks.

Open a cmd window and type chkdsk /?

I did now, there are no bad sectors(!) last year it had now nothing, are they repaired somehow?

Bad sectors are a hardware issue and can't really be repaired through software.

Any reasonably modern harddisk will remap bad sectors to an area of fresh spare sector it keeps just for that purpose. However that doesn't happen until an attempted read/write operation is made on a sector that's gone bad, which triggers the HD's internal reallocation.
For this reason, a full scan such as with chkdsk /r which accesses every sector once will make it appear that any bad sectors were repaired by the chkdsk command, but in reality the HD itself did.

In any case, you should be able to continue using the HD without problems now, but if there are already a lot of reallocated sectors this could indicate an impending failure and likely data loss. If the HD shows one, maybe two reallocations it's probably safe.

I'm doing chkdsk on other partitions cause yesterday I got BLUESCREEN, after I restarted, my KIS 2012 didn't worked and I got some messages with links to Microsoft. and errors in my TEMP files.This is not what I got but it is very similar I found it on Google: Problem signature:
Problem Event Name: BlueScreen
OS Version: 6.1.7600.2.0.0.768.3
Locale ID: 7177

Additional information about the problem:
BCCode: 1
BCP1: 82E89C1F
BCP2: 00000000
BCP3: 0000FFFF
BCP4: 00000000
OS Version: 6_1_7600
Service Pack: 0_0
Product: 768_1

Files that help describe the problem:
C:\Windows\Minidump\032510-17203-01.dmp
C:\Users\Hennie\AppData\Local\Temp\WER-40703-0.sysdata.xml

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I'm checking my HDD, did scan with Spyboot search and destroy, Malwarebytes and KIS Pure and nothing, as for my RAM, it is relatively new, I doubt that the problem lies there, my best guess is that there is some pest that I can't detect.
What should I do?
And BTW, if there are Bad sectors is there a report that I can check or Windows 7 will repair it automatically and show nothing.

anyone?

There's nothing there suggesting that your problem is harddisk-related. Best to start a new thread in the BSOD forum and ask for further help.

What's BSOD?
Can I just ask one more thing PLEASE, is it possible that adding a new HDD that has its own C and a system, but not active; Could that result these freezes?

BSOD=Blue Screen of Death
Other HDD could be a problem if it has a bootable system. Windows gets confused with 2 bootable drives in 1 computer.

My system is on HDD 1 and the partition that the second system is, is on HDD 2 which the first one reads it as a simple partition; I suspected it...Do I have to erase the second C?