ERROR-A / Search

Start with a symptom, message or error code.

Explore
Menu
Error code
0xC1900101

0xC1900101 is associated with problematic or incompatible drivers during a Windows upgrade. It does not identify the driver and does not automatically imply faulty memory or hardware.

Windows upgrade error 0xC1900101

The Windows upgrade failed with a driver-related problem. Check peripherals and devices before trying the upgrade again.

Try this first

1 quick checks · ~4 min

  1. Reduce peripherals not needed for the upgradeWait until the attempt has ended and Windows is responsive again.

Step-by-step solutions

01

Reduce peripherals not needed for the upgrade

  • Estimated time: 4 min
  • Easy
  • Low risk

Wait until the attempt has ended and Windows is responsive again.

  1. Save work and disconnect nonessential external accessories before retrying. Keep the keyboard, display and anything needed to use the computer.

  2. Safely eject removable storage before disconnecting it. Do not remove internal drives or devices during the Windows upgrade.

Sources:
02

Check problem devices and updates

  • Estimated time: 10 min
  • Easy
  • Low risk

The code does not choose which driver to change.

  1. Open Device Manager and check for entries showing a problem. Follow the specific diagnosis if another code is shown.

  2. Check Windows updates and appropriate driver updates. Obtain packages only from the manufacturer for the correct model and version; avoid third-party driver-updater utilities.

Sources:
03

Retry after the required changes

  • Estimated time: 5 min
  • Easy
  • Low risk
  • Restart required

Save work before any requested restart.

  1. After the required updates and restarts finish, try the Windows upgrade again.

  2. If it fails again, contact the manufacturer with the model and full codes. Do not remove every driver to find one by trial and error.

Sources:
Next step

Still not working?

If 0xC1900101 returns, ask for driver compatibility to be checked against the target Windows version. Do not automatically move to a clean installation or data erasure.

Sources

Documentation behind this guide. Editorial recommendations are identified separately.

Source review: . A documentation review, not a physical hardware test.

Related problems

windows
Error code

Windows Device Manager Code 10

Identify the device that cannot start and check its specific driver, keeping Code 10 separate from Code 43.

View solution
windows
Error code

Windows Code 28: drivers not installed

Identify the device missing its driver and obtain the appropriate official package before removing its entry.

View solution
windows
Error code

Device Manager Code 31

Windows cannot load the drivers the device needs. Check for an appropriate update before removing it from the system.

View solution