Many thanks for the so quick reply!
In fact, what I was originally searching for was "good ways to backup personal files", because ultimately I am a little bit "paranoid" about computer failures – had to replace the PSU recently, and now the cooler fan also does some noises at startup on cold days. So I'm definitely going to backup my important files, which aren't many.
Now – I know you said ASAP, but, is it really doomed? I would like to understand that data a bit more, for the future.
Yes it's doomed if doomed means will it die. Anything of an electro-mechanical nature will.
When? Nobody knows at what point it will completely refuse to work. You might limp along with it for hours or months or?
The "bad sectors" are in effect taken out of the game and replaced with substitute sectors. You have a limited number of substitutes.
There's said to be a tendency for bad sectors to accelerate once they begin to show up...as they are now doing.
You can watch and wait..........or you can throw in the towel pronto.
It's a personal decision entirely, driven by your anxiety level over losing data and possibly by your willingness to spend money on a new drive. That's known only to you.
Most would tell you to expect any and all drives, new, old, whatever, to fail at any time and to plan accordingly....which means having backups. Of course, if you are indifferent to personal data loss, there's no reason to back up anything.
What I'd do right now is manually copy all personal data files to another drive, using the mouse or keyboard. Up to you to identify them and know where they are. Then worry about a proper backup program.