Question Computer getting super slow all of a sudden,

Feb 14, 2019
This is not the first time, it has been acting weird for some times now.

But this time... Just now, when I'm using my computer and I tried to open a program (like I normally would) and it didn't open. I thought it would be weird, so I tried to open it again. Suddenly my Discord stopped working, after a while Chrome stopped working too, I don't really understand what's happening but I tried to resartmy computer and I successfully did. After that, Ohhh boy...

It started Windows up, but? Nothing loads, not really, it did but it took like 5 minutes to load Google so I restarted it 1 more time. After this, it even takes 1 minutes to pass the BIOS and it can't boot up Windows anymore. After waiting for a while, it actually said there's a disk error reading or something that and it tells me to press something to restart but it did not help.

Can someone help me solve this tricky problem? Is it my HDD? Is my files ok?