Error 1315 Unable to Write to the Specified Folder (Shared Folder) on Windows 10 machines
Error 1315: Unable to write to the specified folder (shared folder) error is observed when performing a major upgrade or removing an installed target application from a shared location.
- Basic MSI
- InstallScript MSI
Error 1315: Unable to write to the specified folder (shared folder) is observed when performing a major upgrade or removing a setup that is already installed at a shared location.
Error 1315 is observed on Windows 10 machines where Windows Update KB4551762 is installed.
To avoid Error 1315, make sure that the latest Windows updates are installed, specifically Windows updates released after Windows update KB4551762.
A forum post that discusses this issue.