Windows 10: Unable to download and install Windows 11 due to insufficient space on C drive

Discus and support Unable to download and install Windows 11 due to insufficient space on C drive in Windows 10 Installation and Upgrade to solve the problem; I have an about 8 years old Dell Laptop that has a C drive or partition that has 100GB of storage, but it's almost full and I'm unable to delete enough... Discussion in 'Windows 10 Installation and Upgrade' started by Mirjam Koch, May 26, 2025 at 8:47 AM.

  1. Unable to download and install Windows 11 due to insufficient space on C drive


    I have an about 8 years old Dell Laptop that has a C drive or partition that has 100GB of storage, but it's almost full and I'm unable to delete enough files or apps to download and install Windows 11. I have also been unable to increase the C partition. I have enough space on other partitions to install it there. Is there a way to install Windows 11 on another partition?

    :)
     

  2. Windows 11: Unable to install legacy game on C: drive - insufficient disk space

    Hi Fraz,

    Welcome to Microsoft Community.

    I'm Hahn and I'm here to help you with your concern.

    I'm sorry to hear that you're having trouble installing the game on your C: drive. Here are some suggestions to try to resolve the insufficient disk space error when installing Wolfenstein: Enemy Territory on your C: drive:

    1. Run the installer as an administrator: Right-click on the game's installer file and select "Run as administrator." This ensures that the installer has the necessary permissions to access and write files to the drive.

    2. Check disk errors: It's possible that there are disk errors on your C: drive causing the installation issue. You can use the built-in Windows Error Checking utility to scan and repair any errors. Open File Explorer, right-click on your C: drive, select "Properties," go to the "Tools" tab, and click on "Check" under the "Error Checking" section. Follow the instructions to scan and repair the drive.

    Disclaimer: Running chkdsk can check the file system and file system metadata of a volume for logical and physical errors. To avoid any trouble for you, please follow them step-by step ,do not cancel or interrupt chkdsk, and back up important data.

    More information please refer to this chkdsk | Microsoft Learn.

    3. Temporarily disable antivirus software: Some antivirus programs may interfere with the installation process. Try temporarily disabling your antivirus software before running the installer to see if it resolves the issue.

    Disclaimer: Temporarily turn off real-time Microsoft Defender antivirus protection in Windows Security. However, keep in mind that if you do so, your device may be vulnerable to threats. So please turn it on immediately once issue fixed.

    4. As a last resort, try installing the game in Safe Mode. Start your PC in Safe Mode and try the installation again. Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue. Observing Windows in safe mode enables you to narrow down the source of a problem, and can help you troubleshoot problems on your PC. Start your PC in safe mode in Windows - Microsoft Support

    If the problem persists after trying these steps, it might be worth contacting the game's developer or support team for further assistance, as there may be specific compatibility issues with Windows 11 or other factors causing the installation problem.

    I hope this helps you install the game on your C: drive. If there is anything not clear, please do not hesitate to let me know.

    Your Sincerely

    | Microsoft Community Support Specialist
     
  3. Unable to download and install Windows 11 due to insufficient space on C drive

    My windows 10 upgrade consumes all of it's drive c: space (50 GB)

    • My windows 10 upgrade consumes all of it's drive c: space (50 GB)
    • I am unable to install the update,
    • I suspect the windows 10 need this much space and it is some kind of glitch,
    • Please suggest a way to free up some space as I don't prefer to format partition C:
     
Thema:

Unable to download and install Windows 11 due to insufficient space on C drive

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