Change Dell Serial Number =link= Jun 2026

If the BIOS has an "Admin Password" set, the cctk tool will not be able to write the new Service Tag without providing that password.

Disclaimer: This article is for educational and informational purposes only. The author does not endorse or encourage any illegal activity, including tampering with device identifiers. Always consult Dell support or a certified technician for legitimate hardware repairs. change dell serial number

The unique 7-character identifier used for Dell warranty and driver support. If the BIOS has an "Admin Password" set,

Use the command cctk --asset=YourNewTag to update the asset field. 2. BIOS "Service Tag Settings" (New Motherboards Only) If you have just replaced a motherboard: how do i change dell service tag in bios - Experts Exchange Always consult Dell support or a certified technician

Even if you succeed, changing the serial can cause unintended consequences:

While effective for legacy hardware, this method is rarely necessary today unless you are managing a fleet of very old machines.