Corrupted hard drive

[ladybug]

Hi! So I have my old hard drive from my PC and I have a SATA to USB adapter to plug it in to the laptop and use it as an external one.  It might be a little corrupted(but not unreadable) just a little corrupted since it gave out read errors from time to time and it didn't boot Windows from it and sometimes booted but then crashed after a few minutes but otherwise worked fine the rest of the time(sometimes it booted just fine no problems) So I guess it's corrupted but not unusable. So now that I got rid of my old PC I want to use the hard drive from it as an external one(temporarily) for my laptop with the adapter mentioned above. Will it harm my laptop or it's filesystem in some way if I connect it via this adapter and it's corrupted? Or it will be fine and worst case scenario I just won't be able to access the hard drive? I know it's kind of  a stupid question but I have never before successfully hooked up a SATA internal hard drive externally via USB so I just want to make sure it's fine.