Understand S.M.A.R.T Results for my HDD scan

Question

Can anyone around here tell me if this HDD is failed or not? I already bought a new one and installed windows to it since the one in test failed to boot windows and I was never able to fix it.

Here are the data:

Answer 1

Simply put, yes it's failing. Back up any data off this disk immediately

It's started reallocating sectors because they've failed to write - a hard drive has a reserved amount of sectors that it can write to, in case the original write fails.

However you'd not expect this to normally stop a disk booting right away, unless you've also lost some data which is required by the boot process

This question discusses nicely if you can 'trust' a drive that's started re-allocating. I'd personally remove all data off it and trust it only with throw away data that I have stored else where (maybe for carrying some movies around to a friends house or something) but nothing important.