1.the file explorer is not responding so I force it to shut down and windows start repairing me HDD
2.i cannot access my second HDD and it sometimes disappear on the drive list
it does not display any error messages
3.https://imgur.com/41aKrBI
4. I can still play games on the second hdd but it just a little bit slow on loading
1. That can be a sign of corrupt files/allocation tables (might be solved if not a hardware issue).
2. The drive disappearing with no errors might indicate a bad SATA power or data cable, reseating or replacing cables might help.
3. I can't see imgur posts as I think the service is blocked where I am. If possible please upload the photo/screenshot to google drive or Dropbox.
4. Slow loading might also be because of what I said above.
Important Note: Last but not the least, I wasn't able to see that image (screenshot of one of the applications I said earlier?).
If that image is indeed a screenshot and if there are any
pending or
reallocated sectors or
uncorrectable errors that means the drive has/will have
bad sectors and is
failing. It can work for a few month or it can totaly fail next time you open a folder/file explorer.
Backup all important data from the drive/drives
as soon as possible. Before any scanning or testing that would mean more stress/pressure on a failing drive.