0xC1900101 | Rollback due to driver issue

Industry

Systems & Devices

Canonical

/systems/operating-systems/error-codes/0xc1900101/

Last Updated

Feb 27, 2026

Summary

A Windows upgrade failed and rolled back, commonly when a driver causes a compatibility or stability problem.

Advertisement after-summary

Ad Space

What This Code Means

0xC1900101 is widely associated with Windows upgrade failures that are often driver-related. During feature upgrades, Windows performs compatibility checks and staged migrations; if a driver crashes, fails to migrate, or blocks a step, Windows may roll back to the previous version.

Where Users Usually See This Code

Windows feature update attempts
Setup rollback screens
SetupDiag or upgrade logs

Why This Code Appears

An incompatible or outdated device driver
Third-party security software interfering with setup
Connected peripherals triggering driver installs during upgrade
Insufficient resources or errors during the migration phase

What Typically Happens Next

Windows reverts to the previous version
The device remains usable but un-upgraded

What This Code Is Not

It is not always a single driver’s fault without log confirmation
It does not imply data loss occurred

Troubleshooting Checklist

□ Disconnect non-essential peripherals and retry
□ Update critical drivers (storage, chipset, network) from the OEM
□ Temporarily remove or disable third-party security tools for testing (re-enable after)
□ Ensure adequate free disk space before the upgrade
□ Use official upgrade logs/diagnostics to identify the failing component

Notes And Edge Cases

Driver-related upgrade failures are common on older hardware and on systems with vendor-specific utilities.

Related Codes

8 links

Advertisement near-bottom

Ad Space