If your Linux computer is behaving poorly, it could be due to bad blocks or sectors on your hard drive. If that's the case, here's what to do ASAP - or risk losing your data.
Source: ADnet
Source Link: https://www.zdnet.com/article/linux-pc-acting-up-how-to-check-for-bad-blocks-on-a-hard-drive-before-its-too-late/