If Repair-VHD doesn't solve the problem, the corruption might be within the internal volume. You can mount the VHD as a drive and use CHKDSK.
Unlike chkdsk (which fixes file system errors inside a mounted disk), Repair-VHD operates at the — fixing metadata, block alignment, and parent-child chain issues in differencing disks (AVHDX/AVHD). repair-vhd powershell
"The requested operation is not supported on a fixed or dynamic VHD." → You’re not using a differencing disk. Repair-VHD only works on .avhdx or .avhd (differencing) files. If Repair-VHD doesn't solve the problem, the corruption