Note that Online Repair can take a long time to complete. If you are unable to fix the file permissions, you’ll need to do an Online Repair of your Office installation from Control Panel, Program and Features. Right click in the command prompt window and choose Paste.Copy icacls '%programfiles%\Microsoft Office 15' /grant *S-1-15-2-1:(OI)(CI)RX.Right click on the Start button and choose Command Prompt (Admin).The recommended solution is to fix the file permissions, or run Office's Online Repair. While you could disable protected view to fix it, it’s not recommended as it can allow infected documents to run code. Protected View is enabled by default when opening file attachments in Outlook, files from untrusted locations, or files that were downloaded from the Internet. The files are not corrupted but there are issues with the file permissions after the upgrade that affect opening the files in Protected View. PowerPoint: 'The application was unable to start correctly', 'PowerPoint found a problem with ', 'Sorry, PowerPoint can’t read ' Word: 'Word experienced an error trying to open the file' When they try to open the attachments, they receive an error message that there is an error or the file is corrupt.Įxcel: 'This file is corrupt and cannot be opened' This specific issue was fixed in the AugProduct Update.Īfter upgrading to Windows 10, some users are having problems opening Office documents that are attached to Outlook messages.