If you experience any of these signs and you can still boot your computer (new or old) successfully, the first thing that you should do is to backup everything as soon as possible. The sooner you do it, the more likely it is you won’t experience any permanent data loss.
Believe it or not, your hard drive is capable of producing audible clicks. If you hear any strange sounds from your computer and it’s still working smoothly, confirm if it does come from the hard disk first. If it does, you better hastily grab any storage device you can and do a backup of everything important before it’s too late. After doing so, turn your machine off immediately to prevent any further damage.
Any file can become damaged. It means you can’t open it, move it, or, in worse cases, delete it. There are many reasons why a particular file can go haywire. Most of the time, it’s because of copying or moving the file and suddenly cancelling it in the middle of the process (either intentionally or unintentionally). Another reason is also pretty obvious, a virus or malware. Last but not least, wait for it… of course, a failing hard disk drive.