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Level 2

238 points

"Code C1900101" when updating to Windows 10 on MBP

I have a Retina MacBook Pro (Late 2013), on which I dual-boot between Yosemite and Windows 8.1. Last night I tried upgrading to Windows 10. The install spent an hour getting to 48%, then on one of the reboots it said it was unable to start Windows, so it undid the install and restored Windows 8.1. Windows Update History says that it encountered a "Code C1900101" error. I searched for that error, and it looks like C1900101 is a driver incompatibility.

Has anyone else successfully updated a Mac to Windows 10 yet? Do we need to wait for the Boot Camp drivers to be updated?

Posted on Jul 30, 2015 7:00 AM

16 replies

Loner T

Level 9

59,471 points

Aug 6, 2015 5:14 PM in response to Brian Kendig

This points to a W10 upgrade issues. I have quite a few reports of users whose drivers do not install and/or function properly on W10. The W10 is making assumptions about drivers, which is invalid. It expects WHQL drivers, which Apple drivers are not.

"Code C1900101" when updating to Windows 10 on MBP

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