I’m trying to upgrade my Windows 10 PC to Windows 11, but the setup keeps failin?

xpv6195 · Post by **xpv6195** » Tue Jan 13, 2026 3:04 pm

Yeah, Did you check if your RAM is actually running in dual-channel mode, as that can sometimes trip up the requirements?

uPJQKM · Post by **uPJQKM** » Tue Jan 13, 2026 3:13 pm

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.

omc8759332 · Post by **omc8759332** » Tue Jan 13, 2026 3:14 pm

Yeah, that error can be a pain. Try disconnecting any non-essential USB devices before running the upgrade again, that sometimes clears it up.

0649qlfbjm · Post by **0649qlfbjm** » Tue Jan 13, 2026 3:26 pm

Same problem on my end. Following this thread.

dA2O3 · Post by **dA2O3** » Tue Jan 13, 2026 4:13 pm

This. Yeah, that error can be a pain. Try temporarily disconnecting any non-essential USB devices before running the upgrade again.

kah749 · Post by **kah749** » Tue Jan 13, 2026 4:53 pm

I had the same problem. For me, it was an old external drive causing a conflict, even though it seemed unrelated.

vQ00g45l0 · Post by **vQ00g45l0** » Tue Jan 13, 2026 4:56 pm

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!

oS5GbnRllm · Post by **oS5GbnRllm** » Tue Jan 13, 2026 5:32 pm

+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.

lnr7406 · Post by **lnr7406** » Tue Jan 13, 2026 6:44 pm

Following these steps fixed my issue as well.

8481tw · Post by **8481tw** » Tue Jan 13, 2026 6:51 pm

Add me to the list - same error message.