So i installed windows 8.1 pro 64-bit on my new pc, first week it was just slow and hdd was at 100% when i looked at task manager but nothing was using it, so about 3 days ago it started giving me a error when booting something like this "Windows detected a hard disk problem. Back up your files immediately to prevent information loss" when i went to my computer right click the disk and did the error checking then it found nothing. so today it just randomly did a restart to my pc while ingame (the game had lagspikes) and i took my external hdd and started copying my games and important files. Is this normal that this happened? My HDD is 1TB 7200rpm
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the HDD is called a samsung hd103sj
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the HDD is called a samsung hd103sj