Aside from checking your antivirus security software program, you can even use a taaskmgr to check if there are other processes imparting the app. In the Taaskmgr, you can right-click the Glass windows icon. When you have opened it, you will notice all the processes affecting the Discord program.
The best part is that you can actually do this by running the software in a non-administrator mode. The standard way to do this is certainly to uncheck the Run as owner checkbox. You can even do this by simply clicking the Compatibility case. Then, you can click the ALL RIGHT button to apply the changes.