Vista help and support solutions that cannot be opened

Windows vista help and support suddenly can not open (as shown below), the Internet found a half-day reason, the original is the installation of Dreamweaver 8 after modifying the xml file association.

Workaround: Copy the following code in Notepad → Save → Modify the suffix to .reg → double-click to run

Code: Windows Registry Editor Version 5.00

[HKEY_CLASSES_ROOT\\.xml]
@="xmlfile"
"Content Type"="text/xml"
"PerceivedType"="text"

[HKEY_CLASSES_ROOT\\. Xml\\OpenWithList]

[HKEY_CLASSES_ROOT\\.xml\\OpenWithList\\winword.exe]
@=""

[HKEY_CLASSES_ROOT\\.xml\\PersistentHandler]
@="{ 7E9D8D44-6926-426F-AA2B-217A819A5CCE}"

Editing code with Notepad

Modifying the file suffix name, double-click to run