Fix Installation Error 0xC1900101 – 0x20017 in Windows 10

Microsoft releases cumulative updates every second Tuesday of a month so as to ensure the smooth functioning of Windows 10 OS. However, while doing so, several users encounter different installation errors. Today, in this blog, we will discuss one such error 0xC1900101 – 0x20017, the underlying causes, and the probable solutions. As per the user’s view, installation completes and reaches the 100% mark but fails at the time of Rebooting Windows. 

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The presence of external devices like RAM, Network/ WiFi interface card, Bluetooth adapter or corrupt device drivers, erroneous settings under BIOS are some prime reasons. As a solution, we suggest installing the updated version of Windows 10, disable then update the corrupt device drivers, re-configure BIOS setup, etc. If none of the above methods resolve this issue, delete certain keys and their values inside Registry Editor. 

How to fix Installation Error 0xC1900101 – 0x20017 

To resolve the installation error 0xC1900101 – 0x20017, follow these workarounds –

Create a Restore Point

Since this is an installation failed error, performing the below methods incorrectly may corrupt the BIOS. This is why we suggest you create a System Restore Point to save the system files. The same may work as a repairing tool if anything goes wrong. Here are the steps to follow –

  • Press Win and S together to open the Search.
  • Type Create a Restore Point in the text area then hit the Enter key.
  • Switch to the System Protection tab and select Create.
  • Henceforth, type the description in the text box thereafter hit the Create option again.

Create a Restore point

  • Wait till this creates the image file of the System files and folders then Close all running windows.
  • Now try the below fixes to resolve the installation error 0XC190010 – 0x20017.

1] Remove the additional Plug-in

Sometimes attached additional devices like RAM, Wireless or Network adapter, USB printer, SSD, USB disk may prevent Windows 10 from being updated. If that’s the case, you should remove external devices then try reinstalling the operating system again –

Disconnecting the Wireless adapter is rather a simple task. To do this, shut down the system and unplug all the cables from its USB port carefully then remove the Wireless adapter. If the system is under warranty, you may take help from the official service center.

Note: If doing this does solve the issue, replace the existing wireless adapter with a new one. 

2] Uninstall the conflicting device driver

The incompatible Bluetooth and Wireless device driver may also result in installation Error 0xC1900101 – 0x20017 on your system. Hence, uninstalling them before updating the Windows OS works as the diagnostic tool. Here’s how to proceed –

  • Right-click on Start and select the Device Manager option.
  • From the list, locate the installed Bluetooth driver.
  • Next, do the right-click on it and select Uninstall device.

Installation Error 0xC1900101 – 0x20017

  • If any confirmation dialog appears, hit Uninstall again. 
  • Repeat the same process for all the drivers under the Network Adapters section. 
  • Once over, Restart the PC to save the changes performed so far. 

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3] Update Windows 10

The outdated BIOS may also evolve the installation Error 0xC1900101 – 0x20017. To counter this, update your OS to the latest released version of Windows 10 following these steps –

Installation Error 0xC1900101 – 0x20017

  • Once downloaded, double-click the setup file to begin the installation.
  • Henceforth, select the Upgrade this PC now.
  • Afterward, hit Next at the bottom of the page.

Installation Error 0xC1900101 – 0x20017

  • Now select Download and install updates (recommended) thereafter Next again.
  • On the succeeding wizard, tap Accept to agree to the license terms and conditions.

Installation Error 0xC1900101 – 0x20017

  • Mark the Keep personal files and apps option and press the Next button.
  • Succeeding that follows the on-screen instructions to complete the installation process.

4] Disable Wireless and Bluetooth adapter

If the above solutions didn’t resolve the error code 0xC1900101 – 0x20017, disable the wireless and Bluetooth settings under BIOS. Here are the steps to follow –

  • Restart the running computer.
  • When the BIOS is loading, press F2, F4, Del, F10, Esc to enter the boot mode.
  • Under the Advanced tab, navigate to the Wireless option.
  • Here you will get two consecutive options i.e. Internal Bluetooth and Internal WLAN.
  • Go to each section separately and press Enter to select the Disabled option.

disable Wireless adapter

  • Press Esc to return the main screen.
  • Next, select the Save button to confirm the recent changes.

5] Change the BIOS settings

Sometimes the Installation Error 0xC1900101 – 0x20017 may appear due to BIOS settings of hardware. To fix this, one needs to re-configure the hardware by enabling the setup changes such as AHCI to IDE mode. Once performed, re-install the Windows and check if the problem has been resolved completely or not. 

6]  Modify the registry settings

If none of the above solutions work, try modifying certain key values under the registry to fix the installation error 0xC1900101 – 0x20017. Here’s how to proceed –

  • Press Window and R hotkey.
  • Type regedit in the Run command and press Enter.
  • If the User Account Control window appears, tap Yes.
  • Next, copy/paste the following path in the address bar of the succeeding screen and hit Enter.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsSelfHost\Applicability

Installation Error 0xC1900101 – 0x20017

  • Here, change the following key values to –
Ring = WIF
RingBackup = WIS or Enabled
EnablePreviewBuilds = 2
BranchName = TH1
UserPreferredBranchName = TH1
  • When the above process completes, close the Registry editor.
  • Lastly, do the Restart to save the recent changes.

Note: The modification under the registry might be dangerous for the system. Hence, it is recommended to export the registry before making any changes.

  • To do this, go to the File Menu and select the Export option.
  • Here, select All as the Export range then put the desired file name.
  • Next, navigate to the specific location and click the Save button.

This will create a registry backup so that it becomes easy to restore the existing OS just in case something went wrong.

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