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In this article Xiaobian for you to introduce in detail "win7 device manager has a yellow exclamation mark how to solve", detailed content, clear steps, details handled properly, I hope that this "win7 device manager has a yellow exclamation point how to solve" article can help you solve doubts, the following follow the editor's ideas slowly in-depth, together to learn new knowledge.

Solution:

1. First, click on the "start menu" search box, enter "regedit" directly, and click on the program.

2. Open the Registry Editor and click the file "HKEY_LOCAL_MACHINE\ SYSTEM\ CurrentControlSet\ Control\ Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}".

3, finally, you can find "UpperFilters" and "LowerFilters" in the list of key values on the right (if there is only one of them, it does not hinder the following operation), just right-click the menu to delete it.

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