Installing problem

[joshuakj]

Hello,recently i buy a windows 7 enterprise.i tried to install it.firstly i installed windows 7 from old operating system.in that setup i can't see drive options.but i installed it.but when i restart it, i have two operating system.but i need only one operating system.so i insert the disk and set the first booting device as CD-ROM .after that, it comes a new black window there comes three options-repair windows 7,start old operating system in safe mode.i click on repair windows 7.it search for problems after it stops searching a box appears and said windows cannot able to identify this problem.so please help me to solve this problem

 

[residentdean]

Re install windows, go to advanced setting in the install. Format your hard drive and reinstall that will kill the dual partion

 

[joshuakj]

but there is no option for formatting hard drive