[NTSysADM] Factory recovery / restore from WIM

[J- P]

Hi all,
 
I have an inspiron 530s desktop that will only boot to USB or CD, using hirens 
I can see that the DELL recovery partition is still intact as well as the .WIM 
file
 
f8 only gives the boot namager error, what tool /utlity can i use to restore 
this to factory?
 
thanks