Recently had to restore windows 10 after some issues with my sound card.
After restoring, I got the following error message when loading Zwift.
_ “C:\WINDOWS\SYSTEM32\libusbo.dll is either not designed to run on windows or it contains an error. Error status Oxc000012f”. _
The libusbo.dll file seems to control the Ant device. After the windows 10 restore, this file must have been corrupted, The solution was to delete the Ant device and re install it. All working fine now.