Does anyone know if FSlogix does anything that would cause an app or service or windows to think that free disk space is "insufficent" for a couple of a couple of seconds (Less them 50MB) then goes back to normal. I recall this happening in the past with another app and could never figure it out. Maybe this happens at logon when the profile and redirect injecting is going on? Or maybe this is from the FSlogix virtual disk being set to dymanic? How low does does Fslogix report the size on th dynamic disk before it starts to expand and make itself larger? Is it possible that it gets down to 50MB of space left and then starts expanding?