Try to install any software, got the message error 1500 "Another program is being installed. Please wait until that installation is complete, and then try installing this software again.
Check in the registry for a certain subkey that might be there. The subkey we are looking for is called “InProgress”
From your desktop click the Pearl (start) button
In the search field type “regedit” (do not hit enter, “regedit.exe” will appear in the start menu)
Right-click “regedit.exe” and select “Run as administrator”
(If you receive the User Account Control message, select continue or allow to proceed)
You should now be the Registry Editor.
Now we are going to browse to the following subkey:
Under the “Installer” key do you see the subkey “Inprogress”, if so, right-click the “Inprogress” subkey and select delete.
After you delete the “Inprogress” subkey, close the Registry Editor and any other window that you may have open and restart your computer.
Warning: Modifying REGISTRY settings incorrectly can cause serious problems that may prevent your computer from booting properly. Microsoft cannot guarantee that any problems resulting from the configuring of REGISTRY settings can be solved. Modifications of these settings are at your own risk.
1 - Navigate to "Services and Applications" in Computer Management. (right click on Computer and click Manage) DO THIS UNDER LOGIN WITH ADMINISTRATOR RIGHTS.
2 - Expand the Services and Applications
3 - Click on Services
4 - In the right side of window sort by Name and go down to Windows Installer. By default the start up type will be set to Manual. (You will notice that the status will read 'Started' even though you know that it is not really running)
5 - Right click on it and select properties
6 - In the middle of the popup box you will see Startup Type. Use the drop down arrow and select 'Disabled' and click apply.
7 - Close out and reboot. The service is now set to disabled so on reboot it will not still think it has been started. Now follow the above steps again and select 'Manual' and click apply and close out the Computer Management screen.
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