I can also confirm that on two Gateway MX695x laptops: the PCMCIA driver that Windows 10 Creator installed interfered with a number of other devices that were previously working. Renaming this file (pcmcia.sys -> pcmcia.old), using a Ubuntu Live CD (due to file permission issues), solved that problem.
In my case, the PCMCIA driver is for a Texas Instruments PCI-8x12/7x12/6x12 CardBus Controller, which apparently has not been updated for Windows 10, and the generic one that Windows 10 Creator is installing results in a resource conflict with other devices.
I tried installing the latest available driver, which is CardR_TI_v2_0_0_7.zip (for Vista), but it didn't fix the PCMCIA device, so although the other devices now work, that one will not.
MICROSOFT: PLEASE WORK ON RESOLVING THIS DRIVER CONFLICT - IT WILL RESULT IN MANY UNSUCCESSFUL UPDATES FOR OLDER LAPTOPS WITH PCMCIA INSTALLED.