To add an extension, simply add it to the File Extension field and click on the Add button.
Now you want to add some extra extensions that are known to be used to install malware and ransomware. If you do not remove this extension, then all shortcuts will fail to work after you create our whitelist. To remove the extension, left-click on it once and then click on the Remove button. First, scroll through the above list of file extensions and remove the LNK extension from the list. Unfortunately, the above the list is not as exhaustive as you would like and includes an extension that should be removed.
How to only allow certain Windows Applications to Run Though this guide will be geared towards individual users, this same approach can be used in the enterprise by pushing these policies to a Windows domain. This tutorial will walk you through setting up whitelisting using Software Restriction Policies so that only specified applications are able to run on your computer. Personally, I feel if you are willing to put the time and effort into using whitelisting, the chances of a computer infection damaging your computer becomes minimal. Though easy to setup initially, whitelisting can be burdensome as you will need to add new rules every time you install a new program or want to allow a program to run. This allows you to block all programs by default and then setup rules that specifically allow only certain programs to run. With the wide distribution of computer ransomware and other malware infections and the high costs of recovering from them, a very strong computer protection method is whitelisting. The other, and more secure, method is called whitelisting, which blocks every application from running by default, except for those you explicitly allow.
The first method, known as blacklisting, is when you allow all applications to run by default except for those you specifically do not allow. In Windows it is possible to configure two different methods that determine whether an application should be allowed to run. Protecting your computer with Application Whitelisting
2 How to only allow certain Windows Applications to Run.1 Protecting your computer with Application Whitelisting.