Since its introduction, Windows 10 has been reviewed both by tech experts and users who have over time developed a better understanding of how it works and the common known issues associated with its regular use.
While using it may be a breeze, installation may not be that easy for everyone as some issues may arise during installation, or even before and after.
Some common blockers that prevent Windows 10 setup from working or installing properly include processors, incompatible BIOS, HDD controllers, booting from VHD or from Windows to go, running user in audit mode, running an unstaged build or host build is staged, and availability of a NIC card.
One of these problems is the Windows 10 fails c1900101-4000d error, which happens when your installer is unable to pick the installation files while performing an upgrade on your computer.
Windows 10 fails c1900101-4000d error has the 4000s suffix which almost always means faulty drivers, but some reports show a USB driver could also cause the error.
Some of the drivers that are associated with Windows 10 fails c1900101-4000d error are NVIDIA driver and antivirus and security related software.
How to fix Windows 10 error c1900101-4000d
- Run Windows Update troubleshooter
- Perform a Clean boot
- Disable or turn off firewalls and any antivirus or malware prevention software
- Disconnect multiple hard disks and any devices attached to your computer
- Use Command Prompt (Admin) then try updating again
- Remove or reduce RAM on your computer
- Create a new user profile and try setting up from it
Solution 1: Run Windows Update troubleshooter
The Windows Update troubleshooter automatically detects, and fixes most incorrect settings on your computer that brings the message ‘there were some problems installing updates but we’ll try again later’.
The Windows 10 fails c1900101-4000d error usually occurs when your installer isn’t able to pick the installation files while upgrading, so running Windows Update troubleshooter resolves any issues that prevent you from updating Windows.
Follow these steps to run Windows Update troubleshooter:
- Click Start
- In the search field box, type Troubleshooting > click Troubleshooting
- Click View all in the left pane
- Select Windows Update
- Run Windows Update Troubleshooter and follow the instructions on the screen
Does this let you continue with your update installation? If not, try the next solution.
Solution 2: Perform a clean boot
A clean boot eliminates any software conflicts that may be causing the Windows 10 fails c1900101-4000d problem.
These conflicts can be caused by applications and services that start up and run in the background whenever you start Windows normally.
In order to successfully perform a clean boot on Windows 10, you have to be logged on as the administrator, then follow these steps:
- Go to the search box > type msconfig
- Select System Configuration to open the system configuration box
- Find the Services tab
- Select Hide all Microsoft services box
- Click Disable all
- Go to Startup tab
- Click Open Task Manager
- Close Task manager then click Ok
- Reboot your computer
You will have a clean boot environment after following these steps. If you still cannot fix Windows 10 fails c1900101-4000d error, try the next solution.
Solution 3: Disable or turn off firewalls and any antivirus or malware prevention software
Sometimes having multiple firewall, antivirus or malware programs, may at times prevent you from performing certain tasks or run processes on your computer.
If this is the cause of the issue, turn either of the three off temporarily then try to log in again.
Ensure you turn these programs back on immediately after you’re done to prevent hackers, viruses and worms from damaging your system.
It is recommended that you uninstall these security software, and then install versions that are compatible with Windows 10 instead, as background programs that start with Windows operating system could cause Windows 10 fails c1900101-4000d error by preventing a successful installation.
Solution 4: Disconnect multiple hard disks and any devices attached to your computer
Sometimes a hardware may interfere with the normal Windows boot and installation process as Windows tries to detect and install them.
In this case, unplug all devices connected to your computer such as printer, scanner, digital camera, video recorder, USB device, CD/DVD, mp3 player, media card reader, and any other external devices you have plugged in. Keep only your mouse, monitor and keyboard (if using a PC).
Disconnect multiple disks installed on your computer with the exception of the target hard disk in which you will install Windows 10 OS. If you have RAID configuration, disable the controller, and other devices attached as they confuse Windows 10 setup.
Once you do this, unplug the computer from the power outlet on the wall, remove the laptop battery, hold the power button down for 10-15 seconds, then plug back the power outlet and restart.
- ALSO READ: Fix: BUGCODE_USB_DRIVER error on Windows 10
Solution 5: Use Command Prompt (Admin) then try updating again
Here’s how to do this:
- Power down your computer and wait for about 10 minutes then start it again. The setup will automatically restore the previous Windows 10 build or previous Windows version on your computer.
- Right click Start
- Select Command Prompt (Admin)
- Type this command: rundll32.exe pnpclean.dll.RUNDLL_PnpClean /DRIVERS /MAXCLEAN
- Press Enter
- Exit Command Prompt
- Restart your computer
- Try and update Windows 10 again
Solution 6: Remove or reduce RAM on your computer
Sometimes, Windows 10 fails c1900101-4000d error can be caused by bad memory modules which in turn affect Windows 10 installation.
In this case, you can try and remove or reduce the RAM installed on your computer to a single stick.
Solution 7: Create new user profile and try setting up from there
You can create a new user profile then change settings to administrator privileges, and check if Windows 10 fails c1900101-4000d error persists.
Here’s how you can create a new user profile:
- Click Start
- Select Settings
- Select Accounts
- Select Family and other users
- Click Add someone else to this PC
- Fill in the form with the user name and password. Your new user account will be created.
- Click on Change account type
- Click the drop down arrow and choose Administrator to set the account to administrator level
- Restart your computer
- Login to the new account you just created
If the issue goes away, then it may mean your other user profile is corrupted.
You can try the following in case of a corrupted user profile:
- On your new account, use it to downgrade your usual account
- Click Apply or Ok
- Raise back your old account to its default admin level
- Rinse and repeat a few times as this will help to remove any corruption
- Leave your account on as Administrator
Check whether Windows 10 fails c1900101-4000d error goes away when using the newly created account. If it does, then you can either Fix the old user account or migrate to the new account.
Did any of the above solutions fix Windows 10 fails c1900101-4000d error on your computer? Share with us in the comments section below.
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