Sometimes, when users try to install a program on a computer faces an error stating “An installer has encountered unexpected error installing this package”. This mainly occurs when malware is detected on your computer which prevents the application from installation. This tutorial will cover three methods to fix this problem.
Before proceeding with any of the methods below, we recommend to create a system restore point so shall anything goes wrong, you will have ability restore without losing data.
Method # 1: Add an Installer Folder in The Windows Directory
Step 1: Click on the “My computer” to open it.
Step 2: Go to C: drive if this is your Windows installation drive and open the “Windows” folder.
Step 3: In Windows folder, Right click anywhere in the whitespace and click on “New” option and select “Folder” from the menu. After that, type in the name for that folder “Installer”.
Step 4: Restart your computer.
Step 5: When your computer boots up again, try to install the program.
Method # 2: Check The Encryption of The Setup File (Encrypted)
Step 1: Right click on the setup file which you want to install and then select “Properties” from the menu.
Step 2: In properties window, click on the “Advanced” button.
Step 3: In Advanced Attributes, under the “Compress or Encrypt Attributes” section, you will see the option “Encrypt contents to secure data”. Make sure that this option is unchecked.
Step 4: After that, click on “Ok” to proceed followed by again pressing “Ok” to close the properties window.
Method # 3: Add SYSTEM User in the Installer
Step 1: Right click on the setup file, you want to install and then select “properties” option from the menu.
Step 2: Then click on the “Security” tab and press “Edit”.
Step 3: You will see “Group or user names”, under it. Click on the “Add” button and type in the capital letters “SYSTEM” and press “Ok”.
Step 4: Also set the permissions to “Allow for the System users”.
Step 5: At last, press “Ok” button.
Step 6: Now, install the program.
To summarize, we shared three methods to help you fix the error code 2755 that occurs during the installation of a program.