My sharepoint installation was deleted without any backup, but i do have the mdf file. I think I attached the file to a web application to an existing site, and now the data on the mdf is missing. The size of the mdf file did not change, it is and was over 2GB. but now, when i attach it to a web app, i see an empty site, whithout all the original data. When i look at the DB in management studio i cannot see the data from my old sites, but again, the file is very large. Is there any way to recover the data that was in the mdf file, which seems to still be there since its size did not change. Thanks.