Windows 10: No option to shrink partition in Disk Management

Hi, I've got a question about my Windows 10 Home laptop. I don't use it as much now but I thought about a scenario where I can install another copy of Windows 10 on a new partition (it's a 1tb SSD) to use as testing for Windows Insider builds - I've had a look around on this forum and elsewhere and it seems this would be possible to use the same Win10 license for both installations as it's on the same hardware and also only one copy can be in use at a time, is this correct? If so, I would like to make a new partition without losing my data, but when I go into Disk Management, although the "Shrink volume" option is available, the dialog box that comes up doesn't let me alter the size of the disk at all - it just stays at 0MB. Is there another way to be able to partition the disk, for free? Ideally I actually want 3 partitions - one for Windows 10, one for Windows 10 Insider builds and another one for my data, like photos, music, etc. Is this doable? Thank you!

:)

 

undo partition shrink

Hi,

If you accidentally shrink the volume of your SSD partition, there is an option to extend the volume as well. To extend the volume of your SSD partition, follow the steps below:

• Press Windows key + X on your keyboard and select Disk Management.
• Right-click the partition that you want to expand and click Extend Volume.
• Select the amount of space that you want to extend.

Keep us in the loop with the result.

 

undo partition shrink

Hi, disk management has limitations on the size of shrinking partition. Also extending partition with Disk Management, you must have unallocated space next to the partition which you need to expand. Otherwise, the button is grayed out.

I suggest you use a third party free disk partition manager to help you to
extend the partition.

 

Disk Management Shrink Volume wrong capacity

I have 6 partitions on my hard drive. Under Disk Management, when I select a partition and then "Shrink" all but one shows the total capacity correctly, along with the amount to shrink and then the remaining that will be left. However on one partition, when selecting shrink, the total capacity is the sum of the total plus the free, and not just the total capacity. As such, I cannot shrink this volume without an error. The capacity is about 350GB with the free about 200GB. When I select shrink, the total of the volume shows 550GB instead of 350GB. The correct capacity of 350GB shows correctly on the Disk Management listing and boxes on the initial screen and also under Properties on the File Manager. It is only when selecting the shrink option that it shows 550GB.