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Windows Installer Error Code 2755 : If you face this error when trying to install a new program or software, the main cause may be a virus / malware, registry errors, misconfigured settings, and so on. The Windows Installer Error Code 2755 does not allow you to install the program and continues to appear until you resolve this problem. The error is related to the missing Windows Installer folder and some permissions issues that appear to be conflicting for a variety of reasons, but do not worry, because we have listed the troubleshooting steps to correct this error code.

How to Fix Windows Installer Error Code 2755 ?

Method 1: Add an Installer folder in the Windows directory

This error is often related to the fact that the installer folder is missing from the Windows directory of your operating system partition. We will assume that C: is the partition on which your operating system is installed.

1. Open My Computer or This PC, depending on which version of Windows you have, and open the C: partition (or the partition where your OS is installed). Open the Windows folder inside.
2. Right-click anywhere on empty space, and select New, and then Folder from the menu. Name the folder Installer and save it. Reboot your system and try installing your software again.

Method 2: Check if the setup file is encrypted

If the setup of the software you’re installing is encrypted, you will most likely face this error. However, checking this and removing the encryption is fairly easy.

1. Locate the setup file,right-click it and select Properties from the dropdown menu.
2. Click on the Advanced button in the Attributes 
3. Under the lower header,Compress or Encrypt attributes, make sure that Encrypt contents to secure data is  Click OK twice to close the dialog windows, and try installing the software again.

Method 3: Add the SYSTEM user in the installer

1. Again,right-click the installer file and select Properties from the dropdown menu.
2. Navigate to the Security tab and press 
3. Under Group or user names: press Add, and type in SYSTEM, with caps, and hit 
   Make sure the permissions are all set to Allow for the SYSTEM user. Close the dialogues by pressing OK on them. Try to install your software now, and it should work perfectly. At the end of the day, incorrect permissions can cause a lot of headaches and affect your ability to install software. All you need to do is follow the steps outlined in the above methods and you will be able to install your software without any problem.