My fault guys i found it - thoght its in those roamingfolders where i had no permission to access because i work with a userprofile - but i also found out you can look at the debug.log through the client itself with clicking on help...while doing that it got stuck and i had to kill the process. Now i have to wait again for 40 minutes to start it
(What do i have to look for in the debug.log?)
And no i dont use servermode or bfgminer.
Can it still (that forced programstop/task killing or just shutting down) corrupt the walletfile somehow? what should i do against that!?? And what can i do to make it more faster?