Associate the PCH file extension with the correct application. On Windows • , right-click on any pch.com/final file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.pch files". • Update your software that should actually open precompiled headers. Because only the current version supports the latest PCH file format. Search, therefore, e.g. on the Microsoft Corporation manufacturer website after an available Visual C update. • To make sure that your PCH file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com. • Fix issues with PCH files using this PC tool.
