How does Win7 cancel file association?

How does Win7 cancel file association? Recently, many Win7 users asked Xiaobian why the wrong PDF was selected when opening the PDF file, and the related PDF file opened later was also opened incorrectly. How to solve this method. In fact, this reason is also very simple, is the association between files, so as long as the file association can be canceled, the next small series will tell you how to cancel the file association.

1. Click the Start menu — Run, and enter "ldedit" in the Run column. Press Enter;

2. Enter the Registry Editor and click to open. : HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerFileExts.pdf;

3, under the "OpenWithList", under the registration item, except the "default" & rdquo; registry keys in the right window are deleted, and finally deleted “UserChoice” can be registered;

The above is the processing method of Win7 open PDF file associated error, after the above steps, you can open the PDF file.