Windows 7 Professional
Windows 7 Enterprise
Windows 7 Ultimate
Windows Server 2008 R2 (all editions)
- Run command prompt as administrator
- Type: bcdboot c:\windows /s c:
- You should get a message that states: Boot files successfully created.
- Open Disk Management, right-click on your C: drive and select Mark Partition as Active.
- Open Disk Management, delete the system reserved partition.