1. Log on to a user account with administrative privileges since "Limited" or "Power User" accounts won't let Corel software install, uninstall, or run properly.
2. Disable your anti-virus/spyware, and firewall during this clean re-installation procedure.
3. Delete the following folders/directories:
C:\Program Files\Corel\WinDVD11\
C:\ProgramData\Corel\WinDVD11\ (For Windows Vista/7 only)
4. Go to Start >> Run and then type: regedit
5. Hit the enter key to launch the Regedit utility.
6. In the Regedit window, make sure that the following entries are removed:
Computer\HKEY_CURRENT_USER\Software\Corel\DVD11
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Corel\DVD11
Delete the following keys in: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Components\
02CDDE59C99073727809FF91012674A0
9691575B29117154EAB08085366DEEB5
Delete the following keys in: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Installer\UserData\S-1-5-18\Products\
1CB5C5E25829AD54885892FAAE45C125
4EFA9485B208D4C47AF99F882CBBA7F7
9248D1999DFC9D84DB58E6DD03705B9A
B1D43A28C63A35B4FB8CF2F3BD23FC9D
Delete the following keys in: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\
_{991D8429-CFD9-48D9-BD85-6EDD3007B5A9}
{2E5C5BC1-9285-45DA-8885-29AFEA541C52}
{5849AFE4-802B-4C4D-A79F-F988C2BB7A7F}
{82A34D1B-A36C-4B53-BFC8-2F3FDB32CFD9}
{991D8429-CFD9-48D9-BD85-6EDD3007B5A9}
7. Close the Regedit.
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