How can you shrink a disk?

Question

Virtualization

Hi all! On the air, heading "Windows"
how can you shrink the disk? for some reason I can only 100 gigs, instead of the available 1200, I can cut off
Virtualka.
Try to make a partition image with veeam and deploy it to another one?
disk defragmentation does not work.
Maybe some kind of tula (on the cluster vsan car)

Answer 1

The defragmenter built into Windows only defragments (that is, it combines pieces of one file scattered across the disk into one), but you need to transfer files scattered in different physical places on the disk to the beginning of the disk. Use a third party defragmenter.
In addition, many third-party programs that allow you to shrink a disk can immediately defragment it.
Make a bootable flash drive with disk tools, boot from it and defragment and then compress.
Or, from a flash drive, do only defragmentation, and perform compression with built-in tools already from your native Windows.
You can use Acronis Disk Director or something else. I recommend this set as a constructor for a bootable flash drive .

Answer 2

Boot from LiveCD and do it in it.

Answer 3

First you need to do a defragmentation with data transfer.
And then it's better to go through the sdelete utility from MS, it will clean up the place.