1. Open Powershell as administrator
2. Enter get-disk
3. Note the number of the drive (2 in the example above)
4. Enter set-disk number -isoffline $false
5. Enter get-disk again to check the status.
6. If the drive shows read-only follow this guide.
https://docs.microsoft.com/en-gb/archive/blogs/askcore/my-disk-is-read-only-help
