Killed filesystem

This piece of s**t just killed my file system! People, beware!

The system booted once after defragmenting, then it hung, and now it does not boot saying that registry files are damaged. I tried NTFS file recovery tool, but it was not able to restore files as filesystem is totally messed up.

Sorry to hear about your issue, but your problem could have been caused by any number of possibilities.

More likely, running DF was probably just the straw that broke the camels back.

If DF had some sort of flaw or flaky method of reorganising the file structures then this forum would be full of similar posts.

Without any info to go on, I assume you ran DF because the PC was going slow.

It then booted OK after DF then failed to boot any more.

That could easily fall into the description of a hard drive failure.