There are special repair utilities for Windows, that can solve problems related to registry corruption, file system malfunction, Windows drivers instability. Follow our guidelines below to try each available method until it resolves the 0xc1900101 error.ĭownload Windows Repair Tool Download Windows Repair Tool In most cases, the error has been successfully solved using basic and non-complicated methods. All of these causes are quite individualistic having a different impact on each person facing the error. A broad spectrum of reasons has been involved in causing 0xc1900101 to pop – old drivers, insufficient disk space for OS upgrade, third-party conflicts, corrupted system elements, disk errors, and even outdated BIOS firmware.

This issue has no single reason for its occurrence. Here is the full list we are aware of at the moment: It is also worth mentioning that 0xc1900101 may be presented with different suffixes when using Installation Assistant. Failed installation is sometimes followed by messages like “Attempting to recover installation” and “Undoing changes made to your computer”. 0xc1900101 is a Windows error that pops while trying to install new updates or upgrade to Windows 11 using Installation Assistant.