Windows Disk Management prevents changing the size of a storage drive partition.
Windows Disk Management prevents changing the size of a storage drive partition.
You're looking to reduce the size of your E: drive by removing space for a source control partition. The issue you're facing with the "invalid parameter" error suggests there might be an incorrect value or format being used during the shrink operation. Since Windows is protecting data, consider using a tool like GParted or DiskPart to safely manage partitions. Also, ensure you have enough free space (you mentioned 1.1GB available) and check fragmentation status via Control Panel before proceeding. Let me know if you need further guidance!