Hi! I have an Asus Zenbook Duo UX482E running the latest Windows 10 version. The device is only a month old and passes the PC Health Check for running Windows 11 on all parameters. I am not a heavy user and haven't tweaked much in the laptop either. I tried updating to Windows 11 after downloading the Installation assist, and in the fourth stage of the update where the screen gets all blue, the install keeps failing. Every time, the install fails at 59%, with Error Code 0xC1900101. After checking online forums, I performed a clean boot and then tried the installation- which again failed at boot loading.
An error that begins with 0xC1900101 is usually a driver error. Similar error codes you may see are:
0xC1900101 – 0x2000c
0xC1900101 – 0x20017
0xC1900101 – 0x30018
0xC1900101 – 0x3000D
0xC1900101 – 0x4000D
0xC1900101 – 0x40017
The other reasons for this error code to appear could be:
If you have a third-party antivirus installed on your PC, it might hinder the Windows 11 upgrade process. If the scenario applies, disable or uninstall your third-party antivirus suite.
If you are running low on disk space and don’t have enough space to upgrade Windows, it may result in error code 0xc1900101.
Outdated drivers can be another cause for this error.
This error code can be triggered due to Outdated BIOS. As we all know, the new Windows 11 OS has some installation prerequisites to fulfil. So, you will have to update BIOS to the latest for resolving the issue. Basically, while I am developing the best ERP partner in Kolkata then I faced this error.
Some other reasons for this error can be software conflicts or extra hardware that is plugged into your PC.
In any scenario, you should be able to fix the error by following the below methods.
Fix Error Code 0xc1900101 on Windows 11 Installation Assistant
Here are the methods to fix the error code 0xc1900101 while using Windows 11 Installation Assistant:
Update your third-party drivers.
Disable Third-Party Antivirus.
Ensure that there is sufficient storage space on your PC.
Unplug additional hardware.
Fix hard-drive errors using the CHKDSK command.
Restore and repair system files through DISM scan.
Troubleshoot in a Clean Boot State.
Update BIOS.
Clean Install Windows 11.
Upgrade to Windows 11 using Windows 11 Disk Image (ISO) file from Microsoft.
1] Update your third-party drivers
Out-of-date and faulty third-party drivers can cause this error during the upgrade process. So, before installing Windows 11 via the installation assistant, make sure all your drivers are updated. You can manually check for driver updates available by going to Settings > Windows Update > Advanced options > Optional updates. If there are updates available for your drivers, download and install them.
You can also go to the official website of your device manufacturer and find the latest drivers. Apart from that, there are some free third-party driver updaters that help you automatically install the latest drivers on your system.
After updating your drivers, relaunch Windows 11 Installation Assistant and check if the error is fixed.
Related: The installation failed in the SAFE_OS phase during INSTALL_UPDATES, 0x800F081F – 0x20003
2] Disable Third-Party Antivirus
If you have a third-party antivirus installed on your PC, the first thing you should do to fix this error is to disable it. Overprotective antiviruses are known to cause problems during the upgrade and update process. I have also faced this error on ERP for SME but after following these steps I get rid of this error. So, disable whichever antivirus you are using and then check if the issue is resolved.
If disabling doesn’t help, you might need to uninstall the third-party security suite completely from your PC. You uninstall the antivirus program via the Settings app. Another option is to uninstall it using a free third-party uninstaller program.
Now, continue to install Windows 11 using Windows 11 Installation Assistant and see if the error is resolved now. If that doesn’t fix the problem, you can move on to the next potential solution to fix it up.
Follow these steps to resolve your issues.