Step 1:- Now Windows Setup is Started as Shown Below

step 2:-After that loading Window will appear
step 3:-Process will starts
step 4:-It will show the Windows Xp Professional Setup .If u wanna to Install Press Enter , If You wanna to Repair Press 'R'
step 5:-It will display Unpartitioned Space
step 6:- Now we have to Create Partitions for install os by pressing C.Theb give Size
(For Example:- If you want to give 20GB Space Must Enter 20,000. Here 1GB=1024MB)
step 7:-Select C: for Install Os .C Drive is Default Drive for Install OS
step 8:-Press Enter For C Drive Only
step 9:-Select Format Option NTFS as Shown in Below
step 10:-It Displays Operation of Formatting
Step 11:-After Formatting Programming Files Of OS It Will Load into formatted Drive C:
step 12:-Reboot the System
step 13:-After Restart the System Windows Installed the Os
step 14:-Installing the procress
step 15:-Click Next
step 16:-Type Name

step 17:-Enter your product Key Here

Step 18:-Type Must And Should Computer Name And Administrator Password If you Need

step 19:-Set Date and Time

step 20:-Setup Network Settings if this window appears while installing Your OS.Click Next

step 21:-Click Next

step 22:-Installing Windows Will Take 30Min Time .After installed System Displays like as Below
Step 23:- Setup Complected