How to do a Clean install for all Cakewalk products: 1) Completely un-install all Cakewalk programs from your computer. This is normally done from Start | Programs | Cakewalk. This will not remove any of your project files or audio data.
2) Next you will want to open the Run Command
a) In Windows XP this can be done by going to Start | Run
b) In Windows Vista this can be done by holding down the ‘windows’ key and pressing ‘r’
3) At the prompt type regedit and click [OK].
***Backup your Registry before making edits - you do this by clicking the File menu, Export Registry File.
4) Now delete the following Registry keys:
HKEY_CURRENT_USER\Software\Cakewalk Music Software
HKEY_LOCAL_MACHINE\Software\Cakewalk Music Software
*Please note that this will remove any effects presets and key bindings you may have made in Cakewalk. You can back these up separately if you like, using Options | Key Bindings,
Tools | SONAR Plug-in Manager, and Options | Colors. Hit F1 in these views for detailed instructions on how to do this.
5) Open the 'Run' command again.
6) Copy and paste the following into the prompt:
%appdata%
7) This will open your Application Data folder, right-click on the Cakewalk folder and choose ‘Delete’.
8) Navigate to the following directory and delete its contents:
C:\Program Files\Cakewalk
9) Open the 'Run' command again and type ‘msconfig’ Click [OK] and then click on the Startup tab at the upper right of the window that opens.
10) Uncheck all items listed, click [OK], then restart your computer. You can always recheck those items again at a later time.
11) At this point you can reinstall SONAR 8 and SONAR 8.5.