Steps to completely uninstall RAD Studio 2009/2010/xe+

When reinstalling the RAD series, it is recommended that you completely uninstall the previous version and completely uninstall the RAD Studio 2009/2010/xe+: Control Panel--After you perform the uninstall operation in Add/Remove Programs, the following tasks are required:

1. Delete the following directories (note that some directories are hidden):
%allusersprofile%/{01f2d2de-8ba7-41bd-8001-3cd11c14ba7f}/
%allusersprofile%/{2d559015-4c05-4ae5-8c8b-7e13e1eab09d}/
%allusersprofile%/{6a883631-de6e-4096-9348-4d606a536bcb}/
%allusersprofile%/{2563f97a-045f-4e4c-9db1-d5d26c269882}/
%allusersprofile%/embarcadero/
%appdata%/codegear/
%appdata%/embarcadero/
%programfiles%/embarcadero/rad studio/
%programfiles%/common Files/codegear shared/

2. Delete the following key values in the registration (if present):
Hkey_local_machine/software/codegear
Hkey_local_machine/software/embarcadero
Hkey_current_user/software/codegear
Hkey_current_user/software/embarcadero

3. Reboot after completion.

In addition, the default values for the above environment variables are:
6E 2E 6F 6D

In Windows 7+:
Allusersprofile=c:\programdata
Programfiles=c:\program Files
Appdata=c:\users\ User name \appdata\roaming

In Windows XP:
Allusersprofile=c:\documents and Settings\All Users
Programfiles=c:\program Files
Appdata=c:\documents and Settings\ user name \application Data

Recorded here, only as a memo.

Reference: http://blog.csdn.net/ccrun/article/details/6095563

Steps to completely uninstall RAD Studio 2009/2010/xe+