Windows 10: Windows 10 Installation size on SSD partition

I have a 256GB SSD divided into 2 partitions. One is for Win 10.

My Win 10 is in a 65GB partition but only uses 35GB at any one time.

Can I shrink that partition down and if so, by how much? Thanks!

:)

 

Partition SSD during windows 10 install

I'm assembling a new PC and running a fresh windows 10 install. I'd like to know how to partition the ssd into 2 separate partitions during the windows install (I'm using a bootable usb drive to install Windows).

I want to know if I need to input specific settings for those partitions or if it's all automatic?

I need one partition for Windows on and another for my documents. The ssd has 960gb size.

So I'm guessing it has about 60gb over-provisionning. I could leave out a bit more, but it probably doesn't matter that much

 

Partition SSD during windows 10 install

Yep. Exactly this.

When you install Windows, and get to the part asking what drive you want to install to. Click the advanced options, select New, and put in the size you want the C partition to be. Leave the rest unallocated and select the new partition you just created to install to. Then once you are in Windows you can create the second partition and format it in disk management.

 

Installing Windows Vista/7 on a GUID Partition Table

I've never tried multiple partitions so this is a shot in the dark...

At step #10, I would try setting the size parameter (it is in mebibytes) to how large you want the partition windows is installed on to be, then go ahead and install windows. This will leave the rest of the drive raw instead of consuming it into the OS partition (C drive). Once you successfully boot into Windows, you should be able to use Computer Management -> Disk Management to create partitions in the raw space.


If you really wanted to do it with diskpart before Windows is installed, you basically repeat the following lines making sure to specify a size if you don't want it to consume all remaining space:

• create partition primary size=size in mebibytes here
• format quick fs=ntfs label="appropriate name here"
• assign letter=C thru Z here

Obviously, you can use quick formatting or leave it out for full format. Leave off the size parameter when you reach the final partition that should consume all the remaining space. Also remember that the order you do this in goes from the outside of the disk (where it is fastest) to the inside of the disk (where it is slowest). Because of this, it is recommended to put EFI (e.g. size=300), then MSR (e.g. size=300), then Windows (e.g. size=30000), then Applications (e.g. size=70000), then Storage (e.g. no size parameter).

If I'm right, the above example would look like this:

• diskpart
• list disk
• select disk <id>
• online disk
• attributes disk clear readonly
• clean
• convert gpt
  
• create partition efi size=300
  
• create partition msr size=300
  
• create partition primary size=30000
• format fs=ntfs label="Windows"
• assign letter=C
  
• create partition primary size=70000
• format fs=ntfs label="Applications"
• assign letter=D
  
• create partition primary
• format fs=ntfs label="Storage"
• assign letter=E
• exit