Visual Studio uses a PCH folder to save intellisense information and will create a sub folder below the project by default.
The PCH folder can be deleted but Visual Studio applies admin level permissions which makes it difficult to delete
Unfortunately Visual Studio does not allow a pch location to be altered for individual projects or solutions but the location can be overriden for an entire Visual Studio installation
You can instuct Visual Studio to "Always use the fall back location", if the fall back location is not supplied then Visual Studio will use a temp folder
It is useful to note that once you change this setting Visual Studio releases all admin locks on any existing pch folders allowing you to delete them
In the Tools>Options example below "Always Use Fallback location" has been altered from False to True
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