How to make a CHKDSK disk if there is no letter?

Question

Windows

There is a computer on which the boot sector of the disk is broken (100 MB partition) and I want to check it for errors with the CHKDSK utility, but I don’t understand how to do it, because there in the commands you need to specify the disk volume that is equal to the letter designation, but here it is not hidden.

Answer 1

1) Assign a letter to the volume and run the check.
2) Without assigning a letter, start checking by volume ID

chkdsk /f \\?\Volume{a19e7102-4cd1-11e9-80b3-806e6f6e6963}

The GUID of the volume can be viewed with the mountvol command, or in ps

GWMI -namespace root\cimv2 -class win32_volume | FL -property DriveLetter, DeviceID

In this way, it is often possible to check volumes for which a letter cannot be assigned due to an error.
It is also possible to write or read information from a volume that does not have a mount point.
For example, a banal view of the contents of a disk -

start \\?\Volume{a19e7102-4cd1-11e9-80b3-806e6f6e6963}

Answer 2

You can set the letter in the disk manager, nothing bad will happen, then just delete it. Or use third-party verification utilities like victoria.