You want to troubleshoot error 1620 - MSI Cannot Open File
- Verify the file exists and that your PDQ Deploy user account has proper permissions to the directory in which the file is located.
- Close any running programs before the installation and try again.
Temporarily disable your computer's antivirus to verify the file is not blocked or locked by your AV.
- Redownload the installer and attempt the deployment again with the new MSI.