If you are encountering a "Missing bootmgr" error message in Windows 7, there are several steps you can follow to resolve the issue:
1. Use the Windows 7 installation disc to repair startup: Insert the installation disc, boot from it, and choose the "Repair your computer" option. Then select the "Startup Repair" option and let Windows 7 automatically repair any startup issues.
2. Rebuild the BCD (Boot Configuration Data): You can do this by using the Windows 7 installation disc and choosing the "Command Prompt" option. Then run the following commands:
bootrec /fixmbr
bootrec /fixboot
bootrec /rebuildbcd
3. Check for a disconnected hard drive: Make sure all hard drives are properly connected to the motherboard and power...