How do I fix an unallocated hard drive without losing data Windows 10?

3. Update your hard-drive driver

1. Press the Windows key + R.
2. Type diskmgmt. msc and hit OK.
3. Expand Disk drives.
4. Right-click on the unallocated hard drive and select Update Driver Software.
5. Click on Search automatically for updated driver software and follow the on-screen instructions.
6. Restart your machine.

Sep 8, 2020