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Windows creates the folder Windows.old on a PC running Windows when you upgrade the PC to a new version of the operating system.
The Windows.old folder contains files and folders of the old installation of Windows, and the main reason it is there is that it is used to restore the old system if the user wants to go back to it.
This folder may take up a sizeable amount of space, but will get deleted automatically usually by Windows after a set period of time.
Windows users may also use the disk cleanup tool to remove the folder as described here. Sometimes however it happens that the folder and its content is not removed, and that a manual removal does not work either.
When you try to delete the folder manually in Explorer, you get permission errors as the folder is associated with SYSTEM and not a user or administrator account.
What happens usually is that you get a permission request first to run the operation with administrative privileges, and then the Folder Access Denied error.
You need to run the following commands remove the Windows.old folder manually.
Lets take a closer look at the commands to better understand what they do:
takeown /f c:\Windows.old\* /r /a /d y
Takeown can be used to make the administrators group the owner of a file or directory.
cacls c:\Windows.old\*.* /t /grant administrators:f
This command displays or modifies DACL (discretionary access control list) files.
rmdir /s /q c:\Windows.old
The command removes a directory.
Ghacks is a technology news blog that was founded in 2005 by Martin Brinkmann. It has since then become one of the most popular tech news sites on the Internet with five authors and regular contributions from freelance writers.
if on domain may work bit different, can rt click folder properties-security-advanced-change permissions.
then where it lists owner click change and use domain admin acct.
click the replace all child object box.
then apply, ec then delete.
have had to do it to 15 or so of them lately..
Bastante para ahora–
takeown /F C:\Windows.old\* /R /A
pause
cacls C:\Windows.old\*.* /T /grant administrators:F
pause
rmdir /S /Q C:\Windows.old\
pause
Copy-paste this in Notepad and save it as a .bat file.
worked well for me thanks @ jasray
Awesome, love it!
This guy is a friggin’ hero.
Thank you Sir.
Boot from a Linux live cd / dvd, go te the folder where windows.old is located, delete it, done
I’ve seen another method where you run Disc Cleanup and it deletes it.
Yes, Disk Cleanup deletes it usually, but there are situations where this won’t work, or where leftovers remain.
Yes, disk cleanup deleted the files but not the folder. When I tried to delete the folder manually, I got the response that the file was corrupted and unreadable. I searched the Web for an answer, which was to use Chkdsk. When I did that, I was told that the file was in use by another program(?). I was asked if I wanted to run Chkdsk on the the next restart. I answered yes, and restarted. Chkdsk worked seemingly very quickly, and when I tried to delete Windows.Old, I got the same response. I repeated the process, and this time Chkdsk worked more slowly. Then I was finally able to delete Windows.Old.
The Chkdsk command that I used from an administration account was chkdsk C: /F. I tried another version using /B but it did not work. This was on Windows 8.1.
LoHa
command 2 answered:”Zuordnungen von Kontennamen und Sicherheitskennungen wurden nicht durchgeführt.”
What to do?
aloha
I used Google to search the German phrase and translate the result to English. Perhaps https://community.norton.com/de/forums/zuordnungen-von-kontennamen-und-sicherheitskennungen-wurden-nicht-durchgef%C3%BChrt-vista-32-gho-0 will help from Norton.
“Zuordnungen von Kontennamen und Sicherheitskennungen wurden nicht durchgeführt ”
Meaning:”Assignments of accounts and security-states are Not altered.”
“Zuordnungen von Kontennamen und Sicherheitskennungen wurden nicht durchgeführt”
Meaning: “Assignments of accounts and security-states are Not altered.”
Thank you
Worked like a charm. Keep up the good work
Thank you! This worked perfectly where windows.old would not remove through all other methods.
_____THANK_____YOU !!!!!!!!!!!!!!!!!!!!!
I wrestled with this for about an hour. Cortana would not give up the ghost.
I rebooted into safe mode, and applied your fix, and WINDOWS.OLD is now GONE !!!!!
It worked!
Thanks.
Great worked great for me
access denied
you are irrelevant don’t write things and confuse us
Although no files show in Explorer, the excuse given for not deleting is ‘folder not empty’ – that was BEFORE your code and still after your code.
Dear Ghacks.net Administrator: Please note that in the command sequence noted above (takeown /F c:\Windows.old\* /R /A /D Y) to manually remove Windows.old directory and its contents has a typographical error… the command shown om example 2. is “takeown /F c:\Windows.old\* /R /A /D Y”. Tried this and it was not successful in changing the ownership conditions of any files in the target directory. On examination of the explanation text below the suggested commands, I noted that the trailing command switches to the command should have a dash (-) preceding the command switches instead of the slash (/) as shown in the example. I retried the takeown command with the following changes…”takeown /F c:\Windows.old\* -R -A -D Y” which was successful in changing the ownership conditions on all files in the Windows.old directories. The following commands shown in example 3. and 4. were successful as well.
I know you strive for excellence in your advice to your readers. Please try to update the information I have noted above. Sincerely, RDH, an appreciative reader
Thank you RDH. “takeown /F c:\Windows.old\* -R -A -D Y” worked for me. Thanks.
The execution of the 2 cmd
“cacls C:\Windows.old\*.* /T /grant administrators:F”
stops after a while with the error:
“the data area path to a system call is too small”
What do i do?
Costa are you doing this from a command prompt or from powershell? I had a similar error in Powershell but it worked just fine in command prompt.
This WORKED!!!! THANK YOU! THANK YOU! THANK YOU!
Good God.
Why would you want to memorize all those long and dangerous commands?
Just use Windows “disk cleanup” and click the checkbox.
Ugh.
Disk cleanup doesn’t see the Windows.old folder in many cases. This article was a lifesaver, thank you!
Excellent!
had to run it twice, but it did the trick
THANK YOU SOO MUCH SAVED ME 20GB been looking for this , the app unlocker takes ages to delete 100mb
THANK YOU! I don’t know why everyone thinks that disk cleanup will ALWAYS work. I never had an option to remove the previous version of windows. You made my day!
Old thread but wanted to say thanks, the folder was renamed during the win10 upgrade and the system wouldn’t do it automatically. Great advice, worked perfectly and freed up 15G!