Check Disk & NTLDR Missing in Windows

System restart automatically in booting process


1)Boot from cd
2)Select First Repair
3)Type map to know which drive was CD ROM drive
4)suppose cd rom drive is e then type e:    press enter
5)type chkdsk /r c: and press enter
after 100% compleated type exit and automatically restart the m/c


in case of NTLDR Missing error

same steps up to 3 rd step

4) type copy ntldr c:   and press enter

5)type copy ntdectet.com c:  press enter