Use Zadig (v2.8 or older):

If a Virtual Machine is not an option and native installation on Windows 10 is required, the following steps must be followed to ensure stability.

This is the safest, most professional method. It gives you a pristine Windows XP environment inside Windows 10.

Connect a known working target (e.g., MC68HC908 or MPC555 depending on your adapter).
Try:

If you get USB Error -1, Device descriptor request failed, or Invalid firmware:

Install software – Run setup as Admin, accept default paths.

Install USB drivers – Inside software folder, find USB Driver → run DPInst.exe as Admin.

Connect Xprog via USB – Wait for drivers to install.

Run Xprog.exe as Admin.

If device not detected, try different USB 2.0 port (not USB 3.0).

How To Install Xprog 555 — On Windows 10 Better

Use Zadig (v2.8 or older):

If a Virtual Machine is not an option and native installation on Windows 10 is required, the following steps must be followed to ensure stability. how to install xprog 555 on windows 10 better

This is the safest, most professional method. It gives you a pristine Windows XP environment inside Windows 10. Use Zadig (v2

Connect a known working target (e.g., MC68HC908 or MPC555 depending on your adapter).
Try: If a Virtual Machine is not an option