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Posted: Tue Jan 13, 2026 3:04 pm
by xpv6195
Yeah, Did you check if your RAM is actually running in dual-channel mode, as that can sometimes trip up the requirements?
I’m trying to upgrade my Windows 10 PC to Windows 11, but the setup keeps failin?
Posted: Tue Jan 13, 2026 3:13 pm
by uPJQKM
I’m trying to upgrade my Windows 10 PC to Windows 11, but the setup keeps failing. The PC Health Check app says my RAM is the issue, even though I have 6GB installed. The error code I get is 0xC1900101. I’m confused because I thought 4GB was the minimum. Is there a specific speed or configuration my RAM needs to meet for Windows 11? Any help would be appreciated.
Posted: Tue Jan 13, 2026 3:14 pm
by omc8759332
Yeah, that error can be a pain. Try disconnecting any non-essential USB devices before running the upgrade again, that sometimes clears it up.
Posted: Tue Jan 13, 2026 3:26 pm
by 0649qlfbjm
Same problem on my end. Following this thread.
Posted: Tue Jan 13, 2026 4:13 pm
by dA2O3
This. Yeah, that error can be a pain. Try temporarily disconnecting any non-essential USB devices before running the upgrade again.
Posted: Tue Jan 13, 2026 4:53 pm
by kah749
I had the same problem. For me, it was an old external drive causing a conflict, even though it seemed unrelated.
Posted: Tue Jan 13, 2026 4:56 pm
by vQ00g45l0
This. Yeah, that's a good point. Also, double-check your RAM is actually running in dual-channel mode, as that can sometimes trip up the check. Good luck!
Posted: Tue Jan 13, 2026 5:32 pm
by oS5GbnRllm
+1 I had the same problem. For me, it was a specific driver causing the 0xC1900101 error; I had to uninstall my old graphics driver completely before the upgrade would go through.
Posted: Tue Jan 13, 2026 6:44 pm
by lnr7406
Following these steps fixed my issue as well.
Posted: Tue Jan 13, 2026 6:51 pm
by 8481tw
Add me to the list - same error message.