Most versions require you to boot into a DOS environment (like FreeDOS) from a USB drive. Simply running the .exe from within Windows often fails.
The tool usually runs in a DOS environment via a bootable USB drive. Common commands include: : Writes the Serial Number to the BIOS. /WU [UUID] : Writes a 32-character UUID. acer dmi tool link
Example: To set a serial number, you would type dmitools /ws ABC123456789 and press Enter. Most versions require you to boot into a