Windows 10: Disk Clean up questions

Hi, Im trying to get an understanding of how disk clean up is supposed to work. Its always been my understanding that Windows 10 is supposed to clean up previous Windows Installations automatically after 10 days without any user input. The reason being, you have 10 days in which you can Roll Back to the previous installation if you wish. After 10 days I thought Windows should automatically remove the previous Windows installation files.
I clean installed 1909 using the Media Creation Tool a couple of months ago. In order to try out 2004 and test its stability I updated to the 2004 Feature Update by using the Windows Update method. That was 20 days ago. Ive just checked and I have 18.5 GB of previous windows installation files!!! Im wondering why?
a. Why do I have such a large amount...18.5GB seems like a lot?
and
b. Why havent these previous windows installation files been automatically removed by Windows as its been 20 days since I updated to version 2004?

:)

 

DISK CLEANUP

Hello,



Thank you for writing to Microsoft Community Forums.

1. Which files are you trying to delete using disk clean up?
2. Which version of Windows are you currently using?

Please reply back with the information to the above questions in order to provide you with appropriate troubleshooting steps:



I understand that you are trying to free up memory using Disk Cleanup. If you are trying to delete files using disk cleanup on Windows 10, I suggest you to refer the following article on

Disk cleanup in Windows 10 for steps to perform disk clean up on your PC.



Hope it helps.



Sandeep Kumar M

Microsoft Community – Moderator

 

Disk cleanup don't cleans Windows Update Cleanup.

For us to better assist you, we would like to ask a few questions regarding disk clean up.

• Have you made any updates or changes to your computer before experiencing this issue?
• Are you getting any error messages when cleaning the Windows Update Clean up?
• Have you tried any troubleshooting steps before posting this concern? If yes, what are those?

Looking forward to your response.

 

Disk management console view is not up-to-date

i dont know how to fix your disk management, but i can fix your partition problems...




open up Command Prompt with admin rights. (Right click, run as admin)


enter in
DISKPART
list disk

then find the Disk number for your Raid array... lets call it number 7 ( you can tell what disk is what by the total size)
type in

Select Disk 7
List Partition (will give you a list of all the partitions..)
Select Partition 1 (im assuming you only have 1 partition on Disk 7) repeat this step if you have more partitions.
ASSIGN


that should get the array up and running ready to use.


EDITED.

any problems, post back ^^


Still EDITING *Stick Out Tongue

side question, have you tried restarting the PC?