Oh, I got a very similar issue just in these days...On a W7 SP1 x86 I was running WB 7.3 trial version and everything was fine. Just few days ago, when I started the PC I got a blue screen (?!!?); after a couple of minutes taskbar appeared in Windos Classic style (even W7 Aero default was disabled) !!! I checked WB, and I tried to apply some skins, but Windows Classic style was always there. I checked the software and I found message "...WB apperas not to be installed correctly .." By the way, I still had around 20 days trial remaining . I found as well 2 message from Windows Control Center, 1 about WB Configuration crash, and 1 about avp.exe crash ( stopped working; I'm running Kaspersky Internet Security, and there was no iicon in the taskbar) . However, I was sure problem was about WB, not Kaspersky. Taskbar was like "freeze", and even going on start button and click on it, nothing appeared (no start menu). Closing WB was not possible, changing skin was not possible, to stop the "freeze" was not possible..I restarted a couple of times, but nothing changed, At the end I went in Tune Up Program Deactivator ( TuneUp Utilities 2012) and I closed WB from there ( thanks TuneUp!!!). After WB closing, I restarted, no blue screen anymore and Kasperky tray icon correctly displayed ; I re-enabled Aero default , removed WB , downloaded from WC site (CNET), and tried to reinstall: the 20 days trial remaining was recognized, but WB was still not working (."..not installed correctly..."). I made a system restore with an Acronis backup . I restored only partition of HD C, I didn't restore "System reserved" one , because perhaps I could get some trouble, I don't know. Do you think I could solve restoring "System reserved" partition as well (I'm asking, but I don't thik so ) ?
Well, problem is that just 1 or 2 days before the WB crash I installed some Corel software, CorelDRAW Graphics Suite X5 and Corel Painter 12. I even made an Intel software update (driver update ) . I think (well, I'm nearly sure) the installation of these programs has made some changes in system registry configuration, and probably caused the WB crash ( I'm sure the problem is related with some registry key, date or value ) . Perhaps if it was the full version there was no crash, I don't know.. But now I think even if I purchase full version could not work properly..and however I still got more than 2 weeks trial remaining (though at the moment WB is not installed in the PC) .
Any suggestion to solve this issue ?