Windows – CHKDSK error code 766f6c756d652e63 3f1

It appears as if your file system is corrupt and you might have to completely erase your hard drive and re-partition it (after you backup your data, of course).

I have head of cases where people have been booting into the XP recovery mode, running CHDSK from there, boot into the computer and repeat that cycle about 100 times and it eventually 'fixed' the problems, but all this sounds like a lot of hassle.

I strongly suggest you re-parition your whole hard drive again to remove any of these errors.

The longer you use a failing drive the worse and more unreliable it becomes. So if this data is important to recover I would begin backing it up sooner than later. So at this point you might want to skip the chkdsk stuff since you potentially have limited time if the drive decides to stop working altogether.

There are also a number of tools to clone the drive. I find the most reliable to be a tool called dd_rescue. Essentially it makes a bit by bit copy of the hard drive, skipping over any bad or unrecoverable sectors it encounters. This is obviously slow and if the drive is failing to an extreme you might not be able to recover anything.

Another free tool to look at is called Unstoppable Copier. This one is used to recover specific files, which in many cases can be much more convenient than cloning the entire drive (for obvious reasons).

If neither of these tools help at this point, and the data is super important you should maybe consider taking it to a data recovery company.