Before proceeding with any troubleshooting steps, the best option is to backup all your files to avoid any data loss on that drive.
1
Then click your Start Button and just type cmd, then on the resulting list, right click Command Prompt and select' Run as Administrator'
run this command in Command Prompt and press Enter.
wmic diskdrive get status
Please provide a screenshot of the output from that command.
2
Download the widely available free CrystalDiskInfo Utility.
Please provide a screenshot of what that indicates for all drives in your PC.