Hi, corderoy,
Sorry to hear you're experiencing this issue.
You can disable the driver update by disabling the "Device Installation Settings" in the advanced system settings.
1-Right-click on Start then click on Run
2-Type: sysdm.cpl and click on Ok
3-Click on the Hardware tab then click on the "Device Installation Settings" button
4-Select the option "No", then click on "Save changes" and Ok
5-Reboot your computer to the change takes effect
Then you can install the correct version of the driver manually by selecting the option "Let me pick from a list of available drivers on my computer".
1-Right-click on Start then click on Device Manager
2-Right-click on the device that you want to install the correct driver and click on "Update driver"
3-Click on "Browse my computer for drivers"
4-Click on "Let me pick from a list of available drivers on my computer"
5-Select the category of the driver that you want to install and click on "Next"
6-Then click on "Have a disk..." and select the correct version of the driver downloaded from the manufacturer's website and click on Ok
7-Select the correct driver version in the "Model" list and click on "Next" to install the driver
8-Once you finished, the correct version of the driver should be installed and the Windows Update will not change it
I hope this information helps. If you have any questions, please let me know and I'll be glad to assist you further.