If you see the following message, you may be running 32-bit Windows.
This app can’t run on your PC
This version of this file is not compatible with the version of Windows you're running.
Check your computer's system information to see whether you need an x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher.
Unfortunately, VRoid Studio is not compatible with 32-bit Windows.
Please consider switching to the 64-bit version.