want to format C drive but error

[AKII]

main nay window xp install ki "P" drive main aur woh install bhi ho gayi ,per jub pc on krta hun toh do windows aati hain aik purani wali aur aik new wali , mujhay purani wali remove krni hai joh kay C main mojood hai aur aus ko format bhi krna chahta hun , agar koi help kr sakay toh ..............

[Narendar1]

Window Xp se Boot karke...Foamt kardo C

And Window 98 ki Cd se bi ho sakta hai.

[AKII]

window xp say kiya tha format ka option per nahin hua, dont kno y

[Manjan]

1.
New windows xp ko 'Safe mood with command prompt' me boot karein by pressing F8
pher C drive format karne k liye ye command type kare
format c: /FS:NTFS
after complete restart computer, then follow step no. 2

2. go to
My computer > Properties > Advance > Startup and recovery > Settings > System startup > edit > then delete last entry from 'multi(0)disk to /fastdetect

[Zaara]

Do as Manjan says, thenn let us know