I just installed the whs 120 day trial today, changed the time and date on my server and now it says it has expired and wont even start

I already activated it today can I reinstall it?

Hi, According to the description, the issue seems to be related to Windows Home Server. As we mainly focus on the General question about Windows Server system and here is not the best support resource for Windows Home Server, it is recommend you to get further support in the corresponding community so that you can get the most qualified pool of respondents. Thanks for your understanding. For your convenience, I have list the related link as followed. Windows Home Server http://social.microsoft.com/Forums/en-US/category/WindowsHomeServer/ Best Regards, Vincent Hu