How to solve the association error when Win7 opens the PDF file?

Recently, many Win7 users have been reflecting that when using a computer to open a PDF file, the wrong program was selected, causing other PDF files to be incorrect, and the file could not be opened. What is going on here? In fact, this is due to the relationship between the files, so how can we solve this problem? The following small series for everyone to introduce Win7 open PDF file associated error solution.

Procedure:

1, click on the Start menu & mdash; run, and running a column enter & ldquo; regedit & rdquo; Press Enter;

2, into the registry editor, click open in sequence: & ldquo; HKEY_CURRENT_USER \\ Software \\ Microsoft \\ Windows \\ CurrentVersion \\ Explorer \\ FileExts \\ .pdf;

3, the & ldquo; OpenWithList & rdquo; registries Next, in the right window, except for the "default" & rdquo; registry keys are deleted, and finally delete the "UserChoice" registration items;

The above is a small series for everyone to introduce The Win7 open PDF file has a solution to the associated error. The operation steps are very simple, just modify the registry.