How to Fix Windows 11 upgrade and installation errors 0xC1900101

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An error that begins with 0xC1900101 is usually a driver error. If you see any of these error codes, try the following steps first to fix the problem. If these steps don’t work, you can always look for the official dev solution for your specific error.

Whenever a newer version of Windows is released, it’s normal for users to want to upgrade. If a person using an older version of Windows 11, 10 or 8 tries to upgrade to a newer Windows version, the installation process could fail, resulting in the user receiving an error message. After the installation has stopped, the system reverts to the previous version of Windows.

Are you using a Windows 11 PC or laptop but not able to enjoy all the features of this operating system due to Windows being idle? Or receiving activation error during the activation process?

If this has happened to you at some point, then this post is intended to help you. We’ll help you understand exactly what error 0xC1900101 – 0x40017 is, the possible causes, and the corresponding solutions that you can try to solve it.

errors 0xC1900101 on Windows 11

What are the possible causes of errors 0xC1900101 on Windows 11

Third-party Security Tools

This error may occur in some computers due to the presence of antivirus programs from third-parties.

Outdated Device Drivers

Sometimes, the error could be caused by outdated drivers. If this is the case, you are required to update your drivers.

External Hardware

External devices that are connected to your computer could also cause interference with the system and result in the error.

Windows Firewall

There are reports that the Windows firewall sometimes causes the error to come up. Once the firewall gets turned off, the issue gets resolved.

How to fix errors 0xC1900101 on Windows 11

0xC1900101 Errors

If these steps don’t work, see Resolve Windows upgrade errors for more detailed technical info.

  • 0xC1900101 – 0x2000c
  • 0xC1900101 – 0x20017
  • 0xC1900101 – 0x30018
  • 0xC1900101 – 0x3000D
  • 0xC1900101 – 0x4000D
  • 0xC1900101 – 0x40017
  • Make sure that your device has enough space. Your device requires at least 16 GB of free space to upgrade a 32-bit OS, or 20 GB for a 64-bit OS. For more info, see Free up drive space in Windows.

Run the upgrade several times

If the upgrade installation process doesn’t go as expected, running it several times may prove helpful in solving the problem. Alternatively, you could try rebooting the computer and then running the upgrade. Doing this will give you the desired results.

Disable the Firewall

It’s highly likely that the issue has occurred due to the presence of the Windows 11 Firewall, which sometimes interferes with the installation process. The firewall can potentially stop the upgrade. In this case, disable the firewall and then attempt running an upgrade.

If this solution doesn’t work, you still need to keep the firewall disabled until you’re done trying the other solutions.

Disconnect any external hardware

Sometimes, external components interfere with the upgrade process. The good news is that the solution to this is quite straightforward. All you need to do is unplug all devices connected to your computer, then try upgrading to Windows 10 once more.

Temporarily disable or uninstall any third-party antivirus program that you are using

Anti-malware tools commonly cause problems as they consist of files that may be incompatible with other software. Therefore, it is assumed that 0xc1900101 – 0x4000d error when installing Windows 10 may be caused by antivirus. To remove it from the system:

  • Go to Control Panel, select System and Security.
  • Click on Windows Solution Center.
  • Hit Security and locate your anti-virus.
  • Click on it and it and select Uninstall.
  • Restart your PC.

Update your device drivers

If outdated drivers are the reason behind the failed upgrade, you will first have to look until you find the device whose drivers are causing problems and then update them. This can be made easy with the use of a driver updater software that scans your computer for missing or outdated drivers and lets you update them easily.

Uninstall any third-party conflicting software

For some reason, 3rd-party software having low-level coding has been known to cause different issues on Windows 11/10, including this upgrade install error. Moreover, the lack of compatibility in the applications also leads to creating conflict with built-in files and resources. The software might cause various errors during Windows upgrade, update, install and running certain programs. In this case, you can uninstall any third-party software on your system and then retry the upgrade install process.

 Free Up Hard Disk Space

When you are upgrading to Windows 10, make sure you have sufficient hard disk space. Windows 10 installation requires at least 16 GB of free space, hence, make sure you have that covered. If not, you’ll have to free up some space.

You can follow our guide here to know how to free up space on your system volume.

Perform a Clean Boot

Finally, if none of the above-mentioned solutions work out for you, this solution is bound to work for you. Sometimes, your background processes can be interfering with the system due to which the error is being caused. Hence, to eliminate such possibilities, you’ll have to perform a Clean Boot. A Clean Boot lets you boot into your system using the minimal background services/processes required.

Update BIOS

Some Dell users have reported that they tried several solutions but none worked out for them. Their issue was due to outdated BIOS. Hence, if you are using a Dell system, make sure to update your BIOS before running the upgrade.

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