Hello aww22. Uninstall Kaspersky using
Kaspersky Removal Tool. Use
Microsoft Security Essentials as your antivirus with windows inbuilt firewall, and
free MBAM as the on demand scanner.
Download, install and update those, and then run full system scans with both of them, one by one.
Do some disc checks.
- Update your SSD's Firmware (Skip it, if you dont have a SSD)
- Re-seat the sata and power.

- Run chkdsk /f/r, following the option two of the tutorial Disk Check
- Seatool for dos: SeaTools | Seagate download
Burn it in a blank cd. boot from the CD, click on "Accept", wait for it to finish detecting the drives, then in the upper left corner select "Basic Tests", then select "Long Test" and let it run.
Let us know the results.