This is in follow up tohttp://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/2813275f-e163-4a5d-8cae-e4ba5cdc7ab7andhttp://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/89335c8f-58bf-4de5-8f36-674ceb47f729/I will explain my previous issues in brief, but have more information that may help developers resolve my many issues with Offline Files.Long story short, I have been using the Offline Files feature since Windows Vista. Offlines Files worked ok in Vista, but with major CPU performance issues (I spent months on the phone with Microsoft Engineers trying to fix the issue but never got anywhere). I was excited to see how Offline Files would perform in Windows 7 beta (not the RC), and I was pleasently surprised that it actually worked PERFECTLY on two computers that I installed Win7 beta on. No more performance issues and other bugs related to Offline Files. It just worked, and I was very happy. I learned that Microsoft re-wrote Offline Files in Win7 and that fixed many of the issues. I used Offline Files for six months successfully in Windows 7 beta. Now when I installed the official Win7 Release Candidate, everything seemed to go backwards in a bad way. In RC, Offline Files no longer worked as it did in Win7 beta, and I was able to duplicate some bugs after reinstalling Windows 7 again thinking that it would fix the issues. It didn't. One of the issues I posted here:http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/89335c8f-58bf-4de5-8f36-674ceb47f729/After enough time and no real answer from anyone, I decided to reintsall Windows 7 yet again. Guess what? It worked great--for2 days. After reinstalling Windows 7 RC, the FIRSTthing I did was map a network drive to my server computer, then right-click on a sub-folderwithin the drive to see if the "Always Available Offline" option was there. And it was! No fumbling around with Group Policy Editor and the settings. It just worked. See the image below: I was able to make 4 out of 5 subfolders available offline successfully, but the 5th folder did not work. And I think I know why. When I synced the 5th folder (this happened on the 2nd day), I restarted the computer while Offline Files was in the middle of a sync. After the restart, Offline Files ceased to work and was broke again. This issue happened yet again: http://social.technet.microsoft.com/Forums/en-US/w7itpronetworking/thread/89335c8f-58bf-4de5-8f36-674ceb47f729/ Offline Files no longer synced properly, and the options were missing to make folders available offline again. I could not get it work after spending hours troubleshooting. I think restarting the computer during a first-time sync broke Offline Files. But this issue never happened in Vista Business or Windows 7 beta. Only in the RC did this problem occur. So I installed Windows 7 again (my 4th reinstall) and went through the same steps, but without restarting the computer after initializing first sync and letting it finish first. So far so good (it's been 1 day). My point in communicating all of this is that I believe there's a new bug with Offline Files, which causes the feature to permanently break after restarting the computer in middle of a sync. It doesn't "reconnect" and all of the Offline Files related options seem to just dissapear. You may also ask why would I restart in middle of a sync? Because I have over 80GB of data and the sync process takes about 2 hours to complete. I had to restart during software install, But I've done this in Windows 7 and Vista before and Offline Files always continued the sync process after logging back in. In Windows 7 RC, it breaks it. I hope this info helps. Please just get Offline Files working like it did in the beta (pre-RC).