General Delete Windows.old Folder in Windows 11


  • Staff
Windows.old_banner.png

This tutorial will show you how to manually delete the Windows.old folder in the root directory of the Windows drive in Windows 11.

When you upgrade to Windows 11 from Windows 10, repair install Windows 11, custom install Windows 11, or update to a new version of Windows 11 (ex: Windows Update), a copy of the previous installation is saved to the Windows.old folder in the root directory of the Windows 11 drive as a backup. This backup will allow you to be able to go back to the previous Windows for up to a 10 days after updating or upgrading to Windows 11 if needed.

After 10 days, the Windows.old folder for your previous version of Windows will be automatically deleted from your PC by default.

If it’s been fewer than 10 days, you can manually delete the Windows.old folder to free up drive space now instead of waiting for it to automatically get deleted after 10 days.

If you delete the Windows.old folder, this can't be undone (you won't be able to go back to the previous Windows).


Reference:

Delete your previous version of Windows - Microsoft Support

Delete your previous version of Windows
support.microsoft.com support.microsoft.com


Contents



EXAMPLE: Windows.old folder

Windows.old_folder.png





Option One

Delete Windows.old Folder in Settings


You must be signed in as an administrator to use this option.


1 Open Settings (Win+I).

2 Click/tap on System on the left side, and click/tap on Storage on the right side. (see screenshot below)


Windows.old_Settings-1.png

3 Click/tap on Temporary files. (see screenshot below)

Windows.old_Settings-2.png

4 Check Previous Windows installation(s), and click/tap on the Remove files button. (see screenshot below)

Windows.old_Settings-3.png

5 Click/tap on Continue to confirm. (see screenshot below)

Windows.old_Settings-4.png

6 When finished, you can close Settings if you like.




Option Two

Delete Windows.old Folder in Disk Cleanup


You must be signed in as an administrator to use this option.


1 Open Disk Cleanup (cleanmgr.exe).

2 If you have more than one drive on your PC, select the Windows "C" drive, and click/tap on OK. (see screenshot below)

Windows.old_Disk_Cleanup-1-3.png

3 Click/tap on the Clean up system files button. (see screenshot below)

Windows.old_Disk_Cleanup-2.png

4 If you have more than one drive on your PC, select the Windows "C" drive again, and click/tap on OK. (see screenshot below)

Windows.old_Disk_Cleanup-1-3.png

5 Check Previous Windows installation(s), and click/tap on OK. (see screenshot below)

Windows.old_Disk_Cleanup-4.png

6 Click/tap on Delete Files to confirm. (see screenshot below)

Windows.old_Disk_Cleanup-5.png

7 Click/tap on Yes to confirm to delete the previous Windows. (see screenshot below)

Windows.old_Disk_Cleanup-6.png

8 When Disk Cleanup finishes, the C:\Windows.old folder will be deleted. (see screenshot below)

Windows.old_Disk_Cleanup-7.png




Option Three

Delete Windows.old Folder in Command Prompt


You must be signed in as an administrator to use this option.


1 Open Windows Terminal (Admin), and select Command Prompt.

2 Copy and paste the command below into Windows Terminal (Admin), and press Enter. (see screenshot below)

takeown /F "C:\Windows.old" /A /R /D Y​

This command will change the owner of the "C:\Windows.old" folder to the administrators group.


3 Copy and paste the command below into Windows Terminal (Admin), and press Enter.

icacls "C:\Windows.old" /grant *S-1-5-32-544:F /T /C /Q​

This command will grant administrators full control access of the "C:\Windows.old" folder.


4 Copy and paste the command below into Windows Terminal (Admin), and press Enter.

RD /S /Q "C:\Windows.old"​

This command will delete the "C:\Windows.old" folder and its contents.


Windows.old_command.png





Option Four

Delete Windows.old Folder in Command Prompt at Boot


1 Open a command prompt at boot.

2 Perform the following steps to find and verify the Windows drive letter: (see screenshot below)

The Windows drive letter may not always be C: at boot like it is while Windows is started.


  1. Type diskpart into the command prompt at boot, and press Enter.
  2. Type list volume into the command prompt at boot, and press Enter.
  3. From the listed volumes, look for and verify the drive letter (ex: "C") of your Windows 11 drive.
  4. Type exit into the command prompt at boot, and press Enter.
Windows.old_command_at_boot-1.png

3 Type the command below into the command prompt at boot, and press Enter. (see screenshot below step 4)

rd /s /q "<drive letter>:Windows.old"​

Substitute <drive letter> in the command above with the actual Windows drive letter (ex: "C") from step 2.

For example: rd /s /q "C:Windows.old"


4 Close (X) the command prompt at boot. (see screenshot below)

Windows.old_command_at_boot-2.png

5 Click/tap on Continue to exit and continue to Windows 11. (see screenshot below)

Windows.old_command_at_boot-3.png


That's it,
Shawn Brink


Related Tutorials

 

Attachments

  • Windows.old.png
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Last edited:
Click to expand...
That you can retrieve data from the file while it's there is a perk too :-)
 

My Computers

System One System Two

  • OS
    Windows 11 Pro 23H2 (Build 22631.3296)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom built
    CPU
    Intel i9-9900K
    Motherboard
    Gigabyte Aorus Z390 Xtreme
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    32G (4x8) DDR4 Corsair RGB Dominator Platinum (3600Mhz)
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    Internet Speed
    500mb Download. 11mb Upload
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    Microsoft Edge Chromium
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    Windows Security
    Other Info
    System used for gaming, photography, music, school.
  • Operating System
    Win 10 Pro 22H2 (build 19045.2130)
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom Built
    CPU
    Intel i7-7700K
    Motherboard
    Gigabyte GA-Z270X-GAMING 8
    Memory
    32G (4x8) DDR4 Corsair Dominator Platinum (3333Mhz)
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    AMD Radeon R9 Fury
    Sound Card
    Onboard (Creative Sound Blaster certified ZxRi)
    Monitor(s) Displays
    Dell U2415 (24 inch)
    Screen Resolution
    1920 x 1200
    Hard Drives
    3 Samsung SSD drives: 1x 512gig 950 NVMe drive (OS drive), 1 x 512gig 850 Pro, 1x 256gig 840 Pro.
    PSU
    EVGA Super Nova 1000 P2 (1000 watt)
    Case
    Phantek Enthoo Luxe
    Cooling
    Corsair H100i
    Mouse
    Logitech MX Master
    Keyboard
    Logitech MK 710
    Internet Speed
    100MB
    Browser
    Edge Chromium
    Antivirus
    Windows Security
    Other Info
    This is my backup system.
Thank you for your tutorial on deleting Windows.old from my drive. I was having trouble trying to do it the "normal" way you delete directories which obviously failed. After following your steps, Windows.old is now gone. Thanks!
 

My Computers

System One System Two

  • OS
    Windows 11 Professional (x64)
    Computer type
    Laptop
    Manufacturer/Model
    Dell Inc. G16
    CPU
    Intel Core i9
    Motherboard
    Dell Inc. 0FDMYT A00
    Memory
    16 GB
    Graphics Card(s)
    NVIDIA GeForce RTX
    Sound Card
    Realtek(R) Audio
    Monitor(s) Displays
    Generic PnP Monitor (15.3"vis)
    Screen Resolution
    2560 x 1600
    Hard Drives
    4TB SSD
    PSU
    Dell
    Case
    Laptop
    Cooling
    Air
    Keyboard
    Dell
    Mouse
    Logitech
    Internet Speed
    10 Mbps (Dismal, slow DSL over phone line)
    Browser
    Google Chrome
    Antivirus
    Webroot SecureAnywhere
  • Operating System
    Windows 11 Pro
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell
:shawn:
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 2in1 14-eu0098nr (2024)
    CPU
    Intel Core Ultra 7 155H 4.8 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Graphics card(s)
    Integrated Intel Arc
    Sound Card
    Poly Studio
    Monitor(s) Displays
    14" 2.8K OLED multitouch
    Screen Resolution
    2880 x 1800
    Hard Drives
    2 TB PCIe NVMe M.2 SSD
    Internet Speed
    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender and Malwarebytes Premium
Hi Brink, :)

I am running into a little snag with deleting the Windows.old folder on my new system using the Command Prompt method. I initially tried just deleting the folder and then using the Disk Cleanup method, but neither worked -in Disk Cleanup there wasn't even an option to Cleanup System Files, which I thought was strange.

So now that I'm trying the Command Prompt method I'm hitting a snag on the last step, here is my output:

C:\Windows.old\Windows\System32\LogFiles\WMI\RtBackup - The directory is not empty.

I have no idea what this 'RtBackup' directory is. :<

Any direction/help on this would be greatly appreciated! :)

Many Thanks in Advance . . . :wink:
 

My Computer

System One

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Predator Helios 300
    CPU
    11th Gen Intel Core i7-11800H @ 2.30GHz
    Memory
    32 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3070 Laptop GPU, Intel UHD Graphics
Sometimes when I get really stuck deleting a folder, I boot into a Macrium Reflect Rescue USB drive and delete the folder using its File Explorer (icon on bottom left hand corner.

Another similar method is to boot from a live linux drive.
 

My Computer

System One

  • OS
    Windows 10 Pro + others in VHDs
    Computer type
    Laptop
    Manufacturer/Model
    ASUS Vivobook 14
    CPU
    I7
    Motherboard
    Yep, Laptop has one.
    Memory
    16 GB
    Graphics Card(s)
    Integrated Intel Iris XE
    Sound Card
    Realtek built in
    Monitor(s) Displays
    N/A
    Screen Resolution
    1920x1080
    Hard Drives
    1 TB Optane NVME SSD, 1 TB NVME SSD
    PSU
    Yep, got one
    Case
    Yep, got one
    Cooling
    Stella Artois
    Keyboard
    Built in
    Mouse
    Bluetooth , wired
    Internet Speed
    72 Mb/s :-(
    Browser
    Edge mostly
    Antivirus
    Defender
    Other Info
    TPM 2.0
LadyV said:
Hi Brink, :)

I am running into a little snag with deleting the Windows.old folder on my new system using the Command Prompt method. I initially tried just deleting the folder and then using the Disk Cleanup method, but neither worked -in Disk Cleanup there wasn't even an option to Cleanup System Files, which I thought was strange.

So now that I'm trying the Command Prompt method I'm hitting a snag on the last step, here is my output:

C:\Windows.old\Windows\System32\LogFiles\WMI\RtBackup - The directory is not empty.

I have no idea what this 'RtBackup' directory is. :<

Any direction/help on this would be greatly appreciated! :)

Many Thanks in Advance . . . :wink:
Click to expand...

Hello LadyV, and welcome. :alien:

Have you tried the command prompt at boot option?
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 2in1 14-eu0098nr (2024)
    CPU
    Intel Core Ultra 7 155H 4.8 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Graphics card(s)
    Integrated Intel Arc
    Sound Card
    Poly Studio
    Monitor(s) Displays
    14" 2.8K OLED multitouch
    Screen Resolution
    2880 x 1800
    Hard Drives
    2 TB PCIe NVMe M.2 SSD
    Internet Speed
    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender and Malwarebytes Premium
Hello Brink and Thanks for the Welcome :)

No, I haven't tried the Boot method yet, but I did go digging a bit further as I wanted to investigate this 'RtBackup' folder/directory and once I got into: C:\Windows\System32\LogFiles\WMI I looked in Properties and found that the RtBackup folder is Empty. When I tried to access it, I was told that I needed to use the Security Tab. Do I need special permissions even though my account is an Admin account? Apologies for even more questions, just not used to the 'language of 11' yet.

EDIT: Also, my Windows.old folder is 0 bytes in size.
 

My Computer

System One

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Predator Helios 300
    CPU
    11th Gen Intel Core i7-11800H @ 2.30GHz
    Memory
    32 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3070 Laptop GPU, Intel UHD Graphics
LadyV said:
Hello Brink and Thanks for the Welcome :)

No, I haven't tried the Boot method yet, but I did go digging a bit further as I wanted to investigate this 'RtBackup' folder/directory and once I got into: C:\Windows\System32\LogFiles\WMI I looked in Properties and found that the RtBackup folder is Empty. When I tried to access it, I was told that I needed to use the Security Tab. Do I need special permissions even though my account is an Admin account? Apologies for even more questions, just not used to the 'language of 11' yet.

EDIT: Also, my Windows.old folder is 0 bytes in size.
Click to expand...

I wouldn't worry about the log file since it really won't contain anything clear and helpful.

Since the Windows.old folder is 0 bytes (empty), there's no need to try and delete the actual folder unless you just wanted to. Doing so at boot should allow you to avoid access issues.
 

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 2in1 14-eu0098nr (2024)
    CPU
    Intel Core Ultra 7 155H 4.8 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Graphics card(s)
    Integrated Intel Arc
    Sound Card
    Poly Studio
    Monitor(s) Displays
    14" 2.8K OLED multitouch
    Screen Resolution
    2880 x 1800
    Hard Drives
    2 TB PCIe NVMe M.2 SSD
    Internet Speed
    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender and Malwarebytes Premium
Thanks Brink for letting me know; much appreciated. :)
 

My Computer

System One

  • OS
    Windows 11 Home
    Computer type
    Laptop
    Manufacturer/Model
    Acer Predator Helios 300
    CPU
    11th Gen Intel Core i7-11800H @ 2.30GHz
    Memory
    32 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 3070 Laptop GPU, Intel UHD Graphics

My Computers

System One System Two

  • OS
    Windows 11 Pro for Workstations
    Computer type
    PC/Desktop
    Manufacturer/Model
    Custom self build
    CPU
    Intel i7-8700K 5 GHz
    Motherboard
    ASUS ROG Maximus XI Formula Z390
    Memory
    64 GB (4x16GB) G.SKILL TridentZ RGB DDR4 3600 MHz (F4-3600C18D-32GTZR)
    Graphics Card(s)
    ASUS ROG-STRIX-GTX1080TI-O11G-GAMING (11GB GDDR5X)
    Sound Card
    Integrated Digital Audio (S/PDIF)
    Monitor(s) Displays
    2 x Samsung Odyssey G75 27"
    Screen Resolution
    2560x1440
    Hard Drives
    1TB Samsung 990 PRO M.2,
    4TB Samsung 990 PRO M.2,
    8TB WD MyCloudEX2Ultra NAS
    PSU
    Seasonic Prime Titanium 850W
    Case
    Thermaltake Core P3 wall mounted
    Cooling
    Corsair Hydro H115i
    Keyboard
    Logitech wireless K800
    Mouse
    Logitech MX Master 3
    Internet Speed
    1 Gbps Download and 35 Mbps Upload
    Browser
    Google Chrome
    Antivirus
    Microsoft Defender and Malwarebytes Premium
    Other Info
    Logitech Z625 speaker system,
    Logitech BRIO 4K Pro webcam,
    HP Color LaserJet Pro MFP M477fdn,
    APC SMART-UPS RT 1000 XL - SURT1000XLI,
    Galaxy S23 Plus phone
  • Operating System
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    HP Spectre x360 2in1 14-eu0098nr (2024)
    CPU
    Intel Core Ultra 7 155H 4.8 GHz
    Memory
    16 GB LPDDR5x-7467 MHz
    Graphics card(s)
    Integrated Intel Arc
    Sound Card
    Poly Studio
    Monitor(s) Displays
    14" 2.8K OLED multitouch
    Screen Resolution
    2880 x 1800
    Hard Drives
    2 TB PCIe NVMe M.2 SSD
    Internet Speed
    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
    Browser
    Chrome and Edge
    Antivirus
    Windows Defender and Malwarebytes Premium
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