Windows 7 Partitioning Limitations

You know what to do. The instructions were posted earlier. 3rd party partition programs, such as Aomei Partition Assistant will move the files. It has be done from outside of windows, e.g. boot media.

An alternative is to make an image using a 3rd party program, e.g. Aomei backupper ( free version will do the job), or macrium, or O&O or Diskgenius, and several others. Then use boot media to delete the existing windows partition, which then becomes unallocated space. Create a smaller partition from that space. Restore the image to the smaller partition.

Partitioning and Imaging programs will make their own boot media.

On reflection, you are probably best advised to use the imaging method.

That means if something goes horribly wrong several months down the line, e.g. hard drive failure - you have that image to go back to. Most likely, once you have got the hang of it, you will have made images since - which is even better.

Windows has a built in imaging function, which is pretty clever, but not very flexible. Not really suitable for what you want to do.

Shadow copies, possibly. You can delete them. See if that helps.

vssadmin delete shadows /for=c: /all

Done, I can't be bothered with making things perfect this time around, the partitioning is done.

What did you use to do it?

MiniTool

Before using MiniTool I deleted Shadow Copy Files via "Disk Cleanup" then after using minitool I don't see the Unmovable Files anymore from Disk Defrag.