To answer your question, yes, it is possible... Go to ACCESSORIES - COMMAND PROMPT - Right click on Command Prompt and Run as Administrator When command prompt opens, type: slmgr.vbs -rearm <ENTER>
The link to the file is dead....if this is a DELL Proprietary bios, you will need to place this request in the DELL Mod Request Forum.
I see,I flash SLIC 2.1 and then I only can use win 7 or vista ,xp is not suitable for me,right? I don't konw the SLIC 2.1 could make xp down. Thanks for your help.