A person took my boot file and I need to recover it.
A person took my boot file and I need to recover it.
You cannot modify boot.mgr manually. Start from your Windows DVD or USB drive, choose Repair My Computer, then select Start Up Repair. This should resolve the issue; if it fails, proceed to Advanced, then open Command Prompt and enter the listed commands sequentially, maintaining their order. If problems persist, return to Command Prompt and try bcdedit /set {default} device partition=c: followed by the remaining entries. If unsuccessful, reinstall the system as a last resort.