Use of OEM System Builder Channel software is subject to the terms of the Microsoft OEM System Builder License. This software is intended for pre-installation on a new personal computer for resale.The OEM System Builder Channel software requires the assembler to provide end user support for the Windows software and cannot be transferred to another computer once it is installed.ven if the computer OEM Windows was installed on is no longer being used you can't transfer the OEM license to a different computer. Difference Between a Full/Retail License and an OEM/System Builder License.