Boot manager failed to find os loader

[met]

my HP 550 laptop is failing to boot. upon attempting to do startup repair, it gives me a root cause as "boot manager failed to find os loader". what should i do please help? and booting from safe mode is not present despite hitting f8 at boot.

 

[hytecgowthaman]

I think u r doing start up repair via os dvd correct . u get this error now : Bootmgr is missing or compressed . To fix that issue follow this simple steps : copy bootmgr file in other working system (windows hidden file) location c: drive .(pendrive)
Use linux or hirean boot cd to see hdd . Paste Bootmgr in c: .that's it .
If Bootmgr is compressed . Uncompress c: via hirean boot cd .

 

[hytecgowthaman]

Select best answer after get the correct answer .