Windows 10: Create a seperate partition for the OS after it's already installed

I have installed windows 10 on my old SSD, but it isn't in a seperate partition form all my regular data. I now have two SSD's in my pc and I want to move only the OS to my new SSD and keep the rest of my data on the old disk.I know that you can create a partition to store you os on while installing windows, but can you also do that after installing windows?regards,Boaz

:)

 

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

 

Use DiskPart to Create the OS Partition on Clean Install.

I have a Laptop HDD [ my preferred option as opposed to an SSD on this Laptop ] arriving on Friday and I want to use DiskPart to Setup the size of the OS Partition. The main reason I want to do it this way is because DiskPart can create an exact 30 GB Partition [ my OCD ] for example. Here are the steps that I tried the other day which did NOT work . . .

• Boot from the install USB.
• On the Windows Installation Screen press Shift + F10.
• diskpart
• list disk
• select disk 0
• clean
• create partition primary size=30000
• exit
• exit

I intend to leave assign AND format fs=ntfs for Windows to perform as normal during the installation.

Thanks.

 

Use DiskPart to Create the OS Partition on Clean Install.

Those were the steps I did.

Because I figured that Microsoft, in their infinite wisdom, would have required Windows setup to create a separate system and/or recovery partition.