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How to Fix Windows 11 Installation Error 0xc1900101? Why Does It Happen?

Fix Windows 11 Installation Error 0xc1900101

Users can switch to the most recent Windows release using the Settings menu or by utilising alternative techniques, such as an ISO file or the Media Creation Tool. Those who encounter upgrade troubles such as 0xC1900101 – 0x40017 may become imprisoned permanently.

The official release of Windows 11 occurred on October 5, 2022, and it has attracted a considerable deal of worldwide attention. Numerous consumers have upgraded for the first time to Windows 11.

As with prior Windows 10 upgrades, however, some users have been unable to instal Windows 11 due to the 0xc1900101 error. In the intention of supporting you, this article will discuss error 0xc1900101 in Windows 11 and suggest effective solutions for fixing it.

What is Error 0xc1900101?

0xC1900101 faults are typically caused by driver-specific issues. For example, customers’ computers lack the most recent driver update, certain drivers are incompatible with Windows 11 or the most recent version of Windows 10, your computer is missing some devices or has faulty drivers, etc.

Why does Error 0xC1900101 Occur?

Outdated and Obsolete Bios

When the BIOS firmware on your computer has become obsolete, you may encounter the error code in question. Windows 11 is a brand-new operating system with well-established installation requirements. To resolve the issue, you must instal the most recent BIOS updates for your motherboard.

External Antivirus

You may also encounter the previously described issue if you have a third-party antivirus product installed on your computer. This occurs when your security programme prevents the installation from finishing successfully. If this is the case, you must disable the third-party antivirus programme to fix the problem.

Realtek Drivers

As it turns out, the Realtek network drivers installed on your computer can occasionally be a contributing reason to the issue in question. In this situation, you will need to temporarily disable the drivers in order to resolve the issue.

BitLocker and Additional Encryption Programs

Occasionally, the issue may reveal itself when encryption software is installed on your computer. This includes BitLocker and other third-party security applications. You will be required to remove encryption from your drives in order to resolve the issue at hand.

Safe Bootup

The secure boot functionality in the BIOS appears to be a factor in the issues of some users. This occurs when Other OS is selected instead of Windows UEFI Mode for the OS Type setting. If this scenario is applicable, you will need to adjust your secure boot parameters in order to resolve the issue.

.NET Feature

During our analysis, we also identified that the.NET component on your Windows computer is a possible cause of the problem. When this occurs, you must delete the features using the Windows Features panel, followed by the update.

Also Read: How to Fix Bridge.sys Blue Screen in Windows? How Can We Fix It?

Ways to Fix Error 0xc1900101 Occur During Windows 11 Installation

0xC1900101 faults are typically caused by driver-specific issues. Error 0xC1900101 in Windows Update could render your computer inoperable; consequently, its resolution is of the utmost importance. Follow the below methods to fix driver error 0xC1900101 on Windows 10 or Windows 11.

Method 1: Ensure That Your Pc Has Sufficient Storage Space.

This Windows 11 Installation Assistant upgrade issue may be caused by insufficient disc space. As Windows 11 will be downloaded to your system disc on the same partition, you must have adequate storage space to install the operating system.

In addition, if your hard drive is running out of space, you may obtain the error code 0xc1900101. Ensure you have sufficient free space on your hard drive before utilising the Windows 11 Installation Assistant. To avoid this issue, it is advisable to have 100 GB of free storage space.

To free up space on your hard drive, you can employ Windows’ Disk Cleanup Utility. In addition, you can clear up disc space by downloading extra freeware. You could also try eliminating duplicate files from your computer to free up space.

Method 2: Reinstall or Update Driver Software

Since the 0xC1900101 error is caused by a driver-related problem, the first step is to fix the driver problem. You can upgrade or replace your drivers.

Update Disk Driver

Step 1. Right-click “This PC” followed by “Manage.” In the left panel, select “Device Manager.”

Step 2. Expand Disk driver. By right-clicking on the faulty or outmoded disc driver, select “Update Driver Software

Step 3. In the Update Driver Software window, choose “Search automatically for updated driver software” and wait for the process to complete. The latest driver software will then be installed on your machine. Retry the Windows upgrading process.

Uninstall and Re-install Disk Drivers

You might also try uninstalling and reinstalling the driver to fix the 0xC1900101 error.

Step 1. Right-click the disc driver in question and select “Uninstall.”

Step 2. Windows will verify and reinstall the driver when restarting your machine.

Alternately, you can visit the disk’s website to download and install the latest recent driver on your computer.

Method 3: Execute SFC Scan to Repair Error 0xC1900101

Windows Update may encounter the 0xC1900101 issue if system files are corrupted or contain errors. With SFC, you can fix corrupted system files. System File Checker, known as SFC, may scan for and restore any corrupted system files.

Step 1. From the context menu that appears when you right-click the Start button, select Command Prompt (Admin).

Step 2. In the Command Prompt window, type sfc/scannow and press “Enter.”

If the protected file has been modified or corrupted, SFC will repair and replace it with a copy from the system32dllcache folder. If it is found that the file cache has been altered or corrupted, the SFC might attempt to repair it.

Method 4: Utilize the Windows Update Troubleshooter

Step 1. Press Windows key + I to launch the Settings application. Then, select System and click  Troubleshoot on the left side of the window.

Step 2. On the right side of the page, locate and click Other troubleshooters. Click Windows Update and then select the option to run the troubleshooter.

Step 3. Open the troubleshooter window. Attend until it identifies the issue preventing the update from occurring.

Step 4.  A window will appear, highlighting the issues and indicating whether they have been fixed.

Step 5. Then, restart your device and determine whether the error has been resolved.

Method 5: Restore and Repair Corrupted System Files Using DISM Scan

If system corruption is causing this issue, running a scan using DISM or Deployment Image Servicing and Management should resolve it. To perform a DISM scan, open Command Prompt as an administrator and enter the following command:

DISM Scan /ScanAll

Dism /Online /Cleanup-Image /RestoreHealth

After the scan has been completed, restart Windows 11 Installation Assistant and then evaluate if the issue has been resolved.

Method 6: Uninstall Third-Party Antivirus

As it turns out, the first step you should do upon experiencing the aforementioned issue is to delete any third-party antivirus software from your computer. Despite the fact that security systems are extremely beneficial because they protect you from viruses and other threats, they usually cause problems due to false positives.

Almost every user of a third-party security program experiences this circumstance. As a result, we recommend sticking with Windows Defender, which has evolved over time and receives frequent updates.

If you are using a third-party antivirus, you should uninstall it via the control panel. If you do not desire to remove it, you can also choose to temporarily disable it. Determine subsequently whether the problem still exists.

Method 7: Upgrade BIOS

If none of the other solutions worked, you can try changing the BIOS to resolve the issue. This issue may be the result of outdated BIOS firmware, and we are familiar with Windows 11’s basic installation requirements.

If your BIOS firmware is out of date, complications may arise throughout the updating procedure. Changing the BIOS should solve the problem if this is the underlying cause. This guide will assist you in BIOS upgrades. Determine whether this corrects the error. If not, continue to the next possible repairs.

Method 8: Upgrade to Windows 11 Using the Windows 11 Disk Image (ISO) File Provided by Microsoft

You can also attempt to upgrade Windows 10 to Windows 11 using the Windows 11 Disk Image (ISO) file provided by Microsoft. Simply download the ISO file and utilize it to update to Windows 11.

Method 9: Delete a.NET Component

Step 1. Visit the Start menu and conduct a search for the Control Panel. Open it up.

Step 2. In the box for the Control Panel, navigate to the Programs area.

Step 3. On the Programs screen, click the Turn Windows features on or off option under Programs and Features.

Step 4. The Windows Features window should come up.

Step 5. On the list, at the top, uncheck the .NET Framework 3.5 (includes .NET 2.0 and 3.0) option. Then, click OK.

Step 6. Restart your computer once you’ve completed these steps.

Step 7. After your PC boots up, try to run the installation assistant to see if the problem is still appearing.

Also Read: How to fix OBS Studio not recording audio in Windows 11?


In addition to the aforementioned solutions, there are a few other effective methods for resolving Windows Update error 0xC1900101. Unplug any peripherals, run antivirus software to remove any viruses or malware, remove any extra RAM or network cards, etc. The 0xC1900101 error on Windows 10 or Windows 11 may be difficult to fix and prevents the installation of the latest updates. Think about troubleshooting.

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