Missing space after reverting windows feature update

[MajorFoley]

So updated to 1909 and immediately got hit with a IRQL Less or equal error 15 minutes after boot. I decided to revert back to 1809. All looks pretty good except im still missing some space on my SSD. Before i did the update i had about 90GB left and now im down to 67GB. Are the files downloaded for the update still there and if so where are they located so i can clean it up.

[Eigenvektor]

15 minutes ago, MajorFoley said:

Are the files downloaded for the update still there and if so where are they located so i can clean it up.

Most likely, yes. You can try this: https://www.ghacks.net/2017/11/16/how-to-delete-downloaded-windows-update-files/

[Kilrah]

Windows disk cleanup wizard, and click clean system files. Downloaded updates and the other install data if any should be in there to select.

[MajorFoley]

4 minutes ago, Kilrah said:

Windows disk cleanup wizard, and click clean system files. Downloaded updates and the other install data if any should be in there to select.

Did nothing

 

8 minutes ago, Eigenvektor said:

Most likely, yes. You can try this: https://www.ghacks.net/2017/11/16/how-to-delete-downloaded-windows-update-files/

I deleted what is the latest folder in there that was about 9gb so yeah id assume thats the 1909 update. 

Thanks for that guys, hopefully if i update in the future I won't get that error. If i knew what drivers was causing it i would have found those first then do the update. Might be time for a clean install as much as i hate doing them too often.