Clean Registry
1. Downloads and install a free registry-cleaning program, like CCleaner (link provided in 'Resources' section below). After downloading the file, double-click to open. Select your language, click the 'Okay' button, click 'Next' and then click 'I Agree' to agree to the license agreement. Click 'Install,' then wait for the program to install on your computer. Make sure the 'Run CCleaner' checkbox is checked and click the 'Finish' button to run the program.
2. Click the 'Registry' icon on the left side of the CCleaner program window, then click the 'Scan for Issues' button. Once the scan is complete, click on the 'Fix Selected Issues' button. When asked to save a backup of your registry, click 'Yes,' then choose a save spot on your computer.

3. Click on the 'Fix Selected Issues' button. This will fix any registry issues and clean out outdated registry entries for you.
4. Close CCleaner and any programs that are open and restart your computer.
Identify and Remove the Process
5. Write down the name of the DLL file that is experiencing the error on a piece of paper. When the error message pops up, there should be a system directory and file name displayed. The system directory will begin with your operating system drive letter (most commonly 'c:\'), then will be followed by a directory location ('windows\system32\' or something similarly formatted), and then the file name ('usvdgpo.dll' for example). It is not necessary to write down the entire thing, just the file name on the end.
6. Identify the process by visiting the Process Library website (link provided in the 'Resources' section below). Near the top of the screen there is a text area next to a button that is marked 'Find.' Type the file name that you noted in the above step into the text area, then click the 'Find' button.
7. Click on the search result that most closely matches the file name you entered. On the left side of the screen, in the '(filename) General Information' box, write down the name of the system process that is displayed following the phrase 'Part of:'
8. Remove the process by clicking on the 'Start' button in the bottom left corner of your screen, then select the 'Run' option. In the Run dialog box text area, type in 'services.msc'. This will bring up the Services Management window.
9. Locate and right-click your mouse on the name of the system process you noted in step 3, then choose the 'Properties' option. Choose 'Disabled' from the Startup Type drop-down menu, then click the 'Stop' button under the Service Status heading to stop the process from running.
10. Restart your computer. The error message should not occur. If the error message occurs again, if the process could not be stopped in the Services Management window, or if the file could not be found in the Process Library, continue to section 3.
Edit the Registry
11. Click the 'Start' button in the bottom left corner of your screen, then choose 'Run.' In the Run dialog box text area, type in 'regedit'.
12. In the Registry Editor window, click the plus ( ) sign next to the following folders, in order: 'HKEY_LOCAL_MACHINE', 'SOFTWARE', 'MICROSOFT', 'WINDOWS' and then 'CURRENT_VERSION'.
13. Click once on the 'RUN' folder. In the display box on the right side of the Registry Editor window, locate the file directory and name listed under the data heading and delete the entry. This will cause Windows to recreate the file on restart or ignore the entry, which will stop the error message.