Advice on decision to take regarding broken HDD (C:) drive - Hardware & Software

A few days ago I started having troubles with my computer. I was getting freeze-ups when browsing and playing games (noticable regarding large texture streams in UE4 games), a random spontaneous shutdown/reboot even happened. And then the following day, waking up the computer from hibernation another spontaneous shutdown happened, but this time instead of rebooting; I get greeted by the black ASUS start screen with just the logo and a spinning loading symbol. Aswell as a sound going: "..............grrt-grrt-grrt-*click* " (approx 7sec delay between clicks) This seeming quite similar to my previous breakage being similar in nature and the PSU being the culprit previously, I imagined the PSU being the culprit again, not to mention the thunder the previous night. After some reading on different hardware failure symptoms I suspected that the PSU was broken and thus unable to provide enough power for the drive to boot. Thus I bought a new PSU, installed it along with an additional 1 Tb HDD and 120Gb SSD. Booting again yielded the same result as before. So I tried to look at the BIOS, but to no avail due to my limited knowledge. Then my dad tried the same and my computer started scanning and repairing the C:\ drive. It has now been at it for nearly 32 hours and has progressed to 38% (with 5% and 8% being the longest ones to process). But with the aforementioned sound I worry that despite the progress on scanning and repair claimed by the computer; that ech *click* furthers the chance of direct file recovery and that the automatic scan & recovery returning with a failure at the end. Thus the question I pose is: Should I wait for my computer to finish the scanning and recovery of drive C:, or if I should cancel it, re-install windows 10 on a new drive and try to snipe my important files afterwards without the scan and repair.

I recently had this happen to myself not long ago, of a harddrive that would really be picking up speed of failing sectors. I had some critically important stuff on there, so i didn't want to risk any more minutes of up-time, nor unnecessary read- or write actions that potentially kill off more data. I unplugged it entirely, ordered a new drive, only powered it up when i was going to do the sector by sector clone to the new drive, and i only lost a tiny bit of unimportant stuff. tl;dr If you have critically important stuff, don't risk it. Play it safe, power it down, and clone/copy when you have the opportunity for it.

Go buy a new hard drive. Keep your existing hard drive shut off and unused as much as possible. Order the new drive on your phone or on a friend's computer if you can. Every second spent reading (or worse, writing) to that drive increases the chances of it one day just giving up and going dead forever. Once you have your new drive set up and ready to go, then try retrieving your old files, in the order of most important to least important. Try and get your Steam games and whatever last, you can redownload those from Steam. You can't necessarily redownload your family photos (unless someone set up a system for drive backups, but honestly, backups are a lot less common than they really should be)

Update: it's fucked Can an admin close this thread.