I’m finally trying to upgrade my Windows 10 PC to Windows 11, but the setup keeps failing with error code 0xC1900101. My main worry is my files. I created a full system image backup to an external drive before starting, but is that actually enough? I’ve heard some people lose personal data or settings even with a backup. Has anyone successfully restored from one of these images after a failed upgrade? I don’t want to proceed until I’m sure.
From what I've seen, Yes, a full system image backup is exactly what you need. Many of us have restored from one after a failed upgrade, and it will bring back all your files and settings exactly as they were.
Yeah, Agreed, that's a solid first step. Also, try temporarily disconnecting any non-essential peripherals like extra monitors or printers before running the upgrade again. Hope that helps.
This. Yeah, that's great advice. One more thing: double-check your backup by browsing the external drive to make sure you can actually see your important folders there.
Same here. Glad that worked for you! To your question, a full system image should protect your files, but can you check if you have TPM 2.0 and Secure Boot enabled, as that's a common cause for that error? Let me know if that works.
Yeah, a system image is the best safety net, but for that specific error, could you also try disconnecting any non-essential peripherals like printers or extra drives before the upgrade? Let me know if that works.