How to Delete Windows.old and $Windows.~BT folders in Windows 10  

I have installed the update to build 1903 right now............ after i completely all "clean up" using the cleanmgr now i see a remain "Windows.old" folder. There's contain six folder and all folder it's empty and i thinks i can safely remove this folder.

I have tryed from "Explorer" but it's say somethigs like this path it's not anymore exist... strange.

I have tryed option one on first page...... on cleanmgr the "Previous installation" there's no appears...

I have tryed the "Command Prompt ways"... problably the problems it's my os language. It's ITALIAN.... the command prompt say:

C:\WINDOWS\system32>takeown /F "C:\Windows.old" /A /R /D Y
ERRORE: Sintassi non valida. Il valore 'Y' non è consentito per l'opzione '/D'.
Digitare "TAKEOWN /?" per informazioni sull'utilizzo.

How i can do ?

*EDIT*
Problably resolve myself......... /D S........ "Si" instead "Yes"......... simply :)

I attempted to delete that Folder three times over the last several years and each time it ended up that the computer would not reboot. I tried (can't remember how) three different methods and it caused me great grief. Even though it showed zero contents, it wasn't pretty. I leave that thing alone now. Windows itself should have come along far enough by now to automatically remove the Folder as well as the contents.

And it's that small percentage that put my system pads up three times back to back. I'm at the point where I'm paranoid to even hover my mouse over that Folder.
DjDiabolic, let us know if you use this command & how it goes for you.

f14tomcat said:

Put yourself in C: directory. At an Admin Command prompt, copy/paste this, and enter. 99.999% of the time it will delete that.

RD /Q /S windows.old

I have edited my post.... i have successfully removed this folders but i need to change a little the commands of takeown.exe:
I have to use "/D S" instead "/D Y" because my OS it's italian..... S = si :)

Maggidon said:

And it's that small percentage that put my system pads up three times back to back. I'm at the point where I'm paranoid to even hover my mouse over that Folder.
DjDiabolic, let us know if you use this command & how it goes for you.

Read above up.

So for us who are English, is the command still RD /Q /S windows.old?

Maggidon said:

So for us who are English, is the command still RD /Q /S windows.old?

I thinks yes.... the RD it's the same also for italian.

I have a question for you....... in my case the "Windows.old" before to delete it successfully it's contain 6 folder all whit 0 files.
At this point i have successfully deleted whit the command prompt ways......
In your case ?
What's your result ?
You can use takeown correctly ?