Size of Virtual Machine!?!

Hi, after upgrading from Windows 8.1 to Windows 10 my virtual machine has now almost 50GB. Before that it had under 30GB. Is that normal? Thanks!

 

Hi, yes, it's normal behavior. Because only Windows OS takes about 20 and more GB of your VM size.

 

Hi, thanks for the answer. I saw that its possible to delete almost 15GB from the previous windows version (8.1). It doesn't work, when I try to delete it. Do you have any idea what that might be? Is there another way to delete the 8.1 files? Thanks!

 

Hi, to free up some space on your Windows yo may perform the steps below:

1. pen Disk Cleanup from the desktop, swipe in from the right edge of the screen, tap Settings (or if you're using a mouse, point to the lower-right corner of the screen, move the mouse pointer up, and then click Settings), tap or click Control Panel, type Admin in the Search box, tap or click Administrative Tools, and then double-tap or double-click Disk Cleanup.
   
   
2. If prompted, tap or click the drive that you want to clean up, and then tap or click OK.
   
   
3. In the Disk Cleanup dialog box in the Description section, tap or click Clean up system files. You might be asked for an admin password or to confirm your choice.
   
   
4. If prompted, tap or click the drive that you want to clean up, and then tap or click OK.
   
   
5. In the Disk Cleanup dialog box, on the Disk Cleanup tab, select the check boxes for the file types that you want to delete, and then tap or click OK.
   
   
6. In the message that appears, tap or click Delete files.
   
   
7. Go back to Computer in File Explorer, tap or click the drive you cleaned up, and then tap or click Refresh. If you need to free more space (the drive is still marked red), go to the next tip.
   

 

Also please check this KB for more info.
Let us know the results please.