Access Denied Exception while running MSI file
When you download a MSI file or any other file that has been blocked it will have limited capabilities until you unblock it.
For example, a Microsoft® Word document that has been downloaded and blocked can be opened in Word, but the document will be opened in Protected Mode or as a Read Only document.
To Unblock a Downloaded File
- Locate the blocked file.
- Right-click on the file and select Properties from the menu.
- Click Unblock on the General tab.
- Click OK.
NOTE: If you do not see the Unblock option in the Properties dialog box, then the file has not be blocked by Windows.
After unblocking a downloaded file, the file will no longer have limited capabilities.