Windows 10: Partitioned C drive for using 2 operating systems.

I have partitioned my C drive and installed Wiindows 10 into the Key position. I need to install Windows 7 into the 2nd Partition. How is that done?

:)

 

Change partition as system and to drive C

I just installed windows 7 x64 on drive B (boot,crash dump and primary partition), then i decided to completely remove vista x64 on drive c(system,page file,active and primary partition) and make that as another data storage.But i cant delete or format the drive C.How can i do it?And i want the windows 7x64 to be mark as drive C.Can you help me?They're both on same single hardisk.

 

Change partition as system and to drive C

Yes i've already tried that but it didnt have delete or format option on drive C. *Frown maybe it couldnt be delete because its contain the primary system(?).I coudlnt fresh install windows 7 on drive c because my dvd is corrupted *Frown so i had to install vista x64( dont have service pack) first then mount the iso to install win 7 on another partition which result vista x64 as drive C.

 

W7 Hard drive partition issue

to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

- press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
- diskpart <-- start the windows command line partition management tool
- list disk <--- list the installed hdds in this computer for the next step
- select disk 0 <- might have to replace 0 with the number of the correct disk
- clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
- create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
- exit, exit to exit diskpart and the command prompt
- click refresh in partition manager and select your newly created partition and install to that