Windows 10 update error 0xC1900101

In this guide, let us discuss how to resolve Windows 10 update error 0xC1900101. Few users posted this error on Microsoft Community, as they were unable to install, upgrade or update Windows 10. We have researched about Windows update error 0xC1900101 and found best possible resolutions steps to fix the issue on your computer. As Microsoft, support forum says this error occurs due to faulty hardware drivers in the computer. The errors begins with 0xC1900101 – 0x30018 code. also, this article can help you to resolve below errors.

RECOMMENDED: Fix this issue in 3 simple steps. Takes only 2 minutes.
1) Download repair utility.
2) Install program and click Scan button.
3) Click Fix Errors button when scan is completed.
4) Restart your computer.

  • 0xC1900101 – 0x30018
  • 0xC1900101 – 0x2000c
  • 0xC1900101 – 0x20017
  • 0xC1900101 – 0x3000D
  • 0xC1900101 – 0x4000D
  • 0xC1900101 – 0x40017

What is Error 0xC1900101-0x30018?

Usually you get error 0xC1900101 while upgrading to Windows 10 1809, 1903 or 1909 versions. Alternatively, while upgrading to Windows 7 to Windows 10, sometime service packs and major Windows updates also fails to install due to error 0xC1900101-0x30018 on your computer. Windows 10 installation or Windows upgrade incompletes and stops in the middle of the installation. For example installation completes upto 20% or 40% or any other number suddenly it stops installing then reverts back to the previous operation system (usually Windows 7) and shows below error codes and says as We’ve set your PC back to the way it was just before you started installing Windows 10.

  • We couldn’t install Windows 10. We’ve set your PC back to the way it was right before you started installing Windows 10.
  • Error 0xC1900101 – 0x30018
  • The installation failed in the FIRST_BOOT phase with the error during SYSPREP operation.

Windows 10 update error 0xC1900101-0x30018

We couldn’t install Windows 10 error Code 0xC1900101-0x30018. Why?

Usually faulty drivers cause error 0xC1900101 – 0x30018 but not limited, as other factors also can be culprits to cause the issue. Let us make list of them here so that you get idea to troubleshoot the error. Also, consider them as quick and primary steps to resolve the error.

  1. Your PC disk is full or there is no enough space to install, upgrade or update Windows 10.
  2. Make sure your PC meet basic requirements to install Windows 10 on your PC. Sometime Windows may install on low configured computer but you will not get smooth experience. Refer this for to know Windows 10 specifications.
  3. Plugged external hardware’s recommended to remove all externally connected hardware’s and accessories except keyboard and mouse.
  4. Corrupted drivers on device manager. Go to device manager and check if you see any exclamatory mark that they indicate driver update is required. Refer the guide to install driver from device manager.
  5. Faulty security software can cause error 0xC1900101 in your computer.

How to fix Windows Update error 0xC1900101 – 0x30018

I have tested below resolutions steps on Windows 7 and Windows 10 computes, they really helped me to resolve the Update failed with “error 0xC1900101 – 0x30018 the installation failed in the FIRST_BOOT phase with an error during SYSPREP operation“. Hope that they can help you too. I will detail about each steps, kindly follow them one by one. In addition, check if the issue fixed after every step.

Make sure your PC has enough disk space on C drive

Make sure your disk drive has enough disk space, where the operating system installed. PC must have at least 16 GB for 32-bit and 32 GB for 64-bit Windows 10 operating system. Remove unused applications from add and remove programs. Also, delete unwanted files and folder or move them to other disk partition to free up the space on C drive.

Don’t know where the operating system is installed? It is simple to identify.

  • Press Windows and R key together to bring up Run command
  • Type as %windir% press enter. It will take you to drive where the OS installed.

Learn more Disk Cleanup actually improves PC performance.

Make sure your PC meets basic requirements

Your PC should meet basic hardware requirements to allow Windows 10 installation on your computer. Check this Windows 10 specifications.

Processor: 1 gigahertz (GHz) or processor or System on a Chip
RAM: 1 gigabyte (GB) for 32-bit or 2 GB for 64-bit
Hard drive space: 16 GB for 32-bit OS 32 GB for 64-bit OS
Graphics card: DirectX 9 or later with WDDM 1.0 driver
Display: 800×600

Unplug external hardware

I recommend removing all externally connected hardware’s and accessories except keyboard and mouse. Example external hard disk drives. Windows will not be able to install drivers when hardware is in use or busy. so, remove them all and try upgrading Windows.

Reinstall corrupted drivers from device manager

Corrupted and faulty drivers does not allow Windows to install required drivers and system files. then, go to device manager and reinstall all corrupted drivers.

Learn more install drivers from device manager

How to know if the driver is corrupted?
Go to device manager and check if you see any exclamatory mark that they indicate driver update is required. Refer the guide to install driver from device manager.

Disable Anti-virus or firewall software

Sometime corrupted antivirus or firewall software can cause Windows update error 0xC1900101 – 0x30018. Security software can take control of Windows system files and does not allow Windows installation or updates. so, go ahead and disable or uninstall antivirus from your PC.

Repair bad sectors on hard disk drive

To run it from Command Prompt, here are the instructions:

  • Press Windows key to open the Start Menu
  • Select Search
  • Type-in CMD
  • Right-click on Command Prompt from the search results list
  • Right Click and Run as administrator
  • In command, prompt type as below.
  • chkdsk C: /f /r /x

The parameters for this command are:

/f option will attempt to fix any found errors
/r option will locate for bad sectors and recovery any readable information
/x option will force the volume you’re about to check to be dismounted before the utility begins a scan

Type Y to run a scan at your PC’s next restart. Exit Command Prompt and restart the computer.

Perform clean boot

Perform clean boot to remove corrupted startups and unwanted services. After clean boot check for Windows update or start upgrading to Windows 10, it should fix Windows update error 0xC1900101-0x30018.
Learn more: How to perform clean boot in Windows 10.

Run DISM tool to fix error 0xC1900101

Follow the below steps to run the DISM tool in your computer.

Press Windows logo, in the search bar, type cmd. Command Prompt option will appear. Right click on it and select the option Run as Administrator.

Enter or copy paste below commands one by one as it is.

DISM.exe /Online /Cleanup-image /Scanhealth
DISM.exe /Online /Cleanup-image /Restorehealth

Now reboot your computer. And try installing the Windows Updates. It should fix update error now.

Refresh or Reset Windows 10.

If the above troubleshooting steps didn’t work, you can try performing the System Refresh or Reset to re-register all Windows files. It will reset your computer settings to Windows default.

Refresh Windows 10 without erasing data.
Clean reset Windows 10
Clean install Windows 10 from USB bootable media.

For any further help, leave comments or ask more on Forum. Or get free help from computer repair centre.

Arun Prabhakar

Arun Prabhakar immensely interested in following Windows and other technology developments. Being passionate Windows blogger, he loves to help others on fixing their computer issues.
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