Windows 10: How do I shrink my C: partition?

I have a Plex server that I want to dual boot with openSUSE Linux. On a Windows partition that has about 150GB of free space, I can shrink that partition only about 17GB. I ran the Windows disk defragmenter and Defraggler and there has been no difference since running the two. Defraggler says that there's pieces of a file in C:\System Volume Information\ towards the end of the partition that can't be moved.

What do I do?

submitted by /u/TreatmentForYourRash
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:)

 

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.

 

SHRINK C VOLUME TO SMALLER CAPACITY

I have the same issue. I have a brand new HP Envy 17t laptop and have put no files or apps on it. I tried to use Disk Management to shrink the C: system volume but it would only allow 50% shrink. I moved the pagefile.sys and swapfile.sys to another physical
drive, E:, but this made no difference. I can still only shrink the C: volume to 50%.

Perhaps the only solution is to use a third-party partition editor like easeus or mini Partition Editor.

If you have any other suggestions, let me know.

Thanks!

 

Cannot shrink C: partition: Not enough space

Try launching the Event Viewer to see which individual files are blocking the partition shrink.

1. Once again, attempt to shrink the partition. You should get the "There is not enough space" error.
   
2. Launch Windows' Event Viewer application.
   
3. In Event Viewer, go to Windows Logs > Application.
   
4. Find and Click a recent log of type Warning. It should have the message, "Error: during volume shrink initiated on volume Windows (C we failed to move a movable file extent." (screenshot)
   
5. The Diagnostic details will give you the name of the "last unmovable file"
   
6. Delete this file (Simply send to recycle bin. I did not need a hard delete).
   
7. Try shrinking your volume again.
   
8. Repeat steps 2-7 until you successfully shrink your partition. (In my case, I had to do this 3 times, as I had 3 pdf files in my local Google Drive that were for some reason stuck as 'unmovable'.).
   
9. Restore your deleted files.
   

CAUTION:
Make sure you know what you are deleting! In my case, I knew that these pdf files were:

1. Not system files
   
2. Easy to download again if they became lost