This article may interest you, if when you try to install drivers and other softwares on Windows 7, the installation may fail if you have previously uninstalled Windows Media Center.
You may experience this issue, because uninstalling Windows Media Center removes the following registry key: HKEY_LOCAL_Machine\SOFTWARE\Microsoft\Windows\CurrentVersion\RunOnce
To resolve this issue, try one of these to add the registry key back into the registry.
1. Re-enable Windows Media Center
– Click the Start button > Control Panel > Programs & Features, and then click Turn Windows features on or off.
– In the Windows Features window, click Media Features to expand it, check the Windows Media Center box, click OK, and then restart your computer to complete the install.
2. Add the missing registry key back to the Windows Registry
To add the missing key to the registry, do the following;
Caution: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall Windows. Use Registry Editor at your own risk.
1. Click Start, on the Search bar, type regedit, then hit Enter
2. Locate the following registry subkey: HKEY_LOCAL_Machine\SOFTWARE\Microsoft\Windows\CurrentVersion
3. Once you locate the registry subkey, right-click the CurrentVersion registry key, click New and then click Key
4. Type RunOnce in the text area and then hit Enter
5. Exit the Registry Editor