Bootmgr is missing ERROR ...!!!!!!!!

Bootmgr is missing ERROR

I had a tough time with windows server 2008 R2 when it gave me an error as 

“ BOOTMGR IS MISSING  PRESS CTRL+ALT+DEL TO RESTART”

After lots of struggling hours on internet and consulting many experts I was able to boot my server normally, it was very important server to retain as many things depended upon it .Things that I have tried were changing the boot options from settings and trying to boot and tried to explore other options too… things which worked were when I tried to explore through repair options,(I took a snapshot of the machine before attempting these as it was virtual machine)

1.   Boot your server from CD\DVD
2.  Click next and select Repair your computer 
3. Select first option and click next
4. Select command prompt
5. Type diskpart and enter
6.  Type list Volume and enter  
7. Check which is the system reserved partition (basically it would be 100 MB check the drive letter too)
8. Select the volume which is assigned to system reserved partition eg. Select volume 1 and enter
9. Type active and enter this would give message like ’DiskPart marked the current partition as active'
10. If you type list volume again it would shoe asterisk (*)which is active
11. Now type list disk and enter
12. Select the disk where your windows is installed typically its disk0 hence type Select Disk 0 and enter
13. Type list partition and enter to list partitions which may display message like Partition 1 is now the selected partition
14. Exit diskpart now
15. You can additionally try system file checker commands too like sfc /scannow which inspects all important windows files and if it finds any issues with them it replaces them
16. Restart your server machine and check if that’s boots properly.

Hope this helps resolving the above issue.