Default Windows installations create a hidden partition ... This information will be contained in the record "", where X and Y are the disk and partition numbers, numbered according to NT ...
If you're upgrading from an HDD to an SSD, make the most of the extra speed it offers by setting the SSD as your boot drive.
The "Check Disk" command is a mainstay of the Windows operating system ... to restart the PC so that the scan can start. Press Y. Wait for your PC to restart, and the scan will start.