File Extension Library

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.H1Q File Extension

  • Developer by: Microsoft
  • Category: Misc Files

What are .H1Q files and how to open them?

Can't open .H1Q file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .H1Q file.

What is a .H1Q file extension?

.H1Q file extension is created by Microsoft. .H1Q has been classified as Misc Files.

.H1Q is Microsoft Help Merged Query Index File

Query index used by Microsoft Help, a system help program included with the Windows operating system; stored in the "\Documents and Settings\All Users\Application Data\Microsoft Help" in Windows XP and the "\ProgramData\Microsoft\Assistance\Client\1.0\en-US" directory in Windows Vista.

How to fix problems with .H1Q files

  1. You need to update the application that you normally use to open .H1Q files. Only the latest version of the software supports the current .H1Q file format
  2. You need to check the .H1Q file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)
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