How to Fix 0xc1900101 Error – windows 8.1 upgrade fails with error code 0xc1900101-0x20017

Windows 8.1 upgrade fails with error code 0xc1900101-0x20017, which is typically seen on systems using full disk encryption. This error message can be frustrating for users who have successfully installed Windows 8.1 on other devices.

The issue arises from the fact that Windows 8.1 requires specific hardware and software configurations to function properly, and some systems may not meet these requirements due to the presence of full disk encryption. In this guide, we will explore the root causes of this error and provide two methods for resolving it.

🛑 Root Causes of the Error

• The primary reason for this error is that Windows 8.1 requires a specific configuration to work with full disk encryption. When the operating system detects that the drive is encrypted, it may not be able to properly decrypt it during the installation process, resulting in the failure of the upgrade.
• Another possible cause is that the system's hardware or software configurations do not meet the requirements for Windows 8.1, which can lead to issues with the upgrade process.

🚀 How to Resolve This Issue

💡 Conclusion

Resolving the error code 0xc1900101-0x20017 requires either decrypting and reinstalling Windows 8.1 or disabling full disk encryption on your system. Both methods can be effective in resolving the issue, but it's essential to weigh the pros and cons of each approach before proceeding.