Hello @Pazrael‌ !

To see if it is another program preventing your launcher from opening, we need to do a Selective Startup. Here's how to get into Selective Startup mode:

1.Click Start and type msconfig in the search box
2.Right click on the msconfig.exe program and choose "Run as administrator"
3.On the General Tab at the top, click on the Selective startup radio button
4.Uncheck "Load startup items"
5.Click on the Services tab and check the "Hide all Microsoft services" box
6.Click the "Disable all" button at the bottom
7.Click Apply, then click OK
8.Restart your computer.

When your computer boots up again, it will be in Selective Startup.

There is an additional step you need to take. After running the computer in selective start up, you will now need to put the game into Administrative mode.

To do that, Right-click on the launcher icon; select properties; choose the "Compatibility" tab; (If you have Windows 8, in the Compatibility box select Windows XP Service Pack 3). Check the box that says "Run as Administrator;" Click Apply and OK.

After you do this, go to My Computer, then C: drive, then go to Program Files (x86). Under that folder, go to the Zenimax Online folder, then the Elder Scrolls folder. Under the Game, then Client folders, look for a file called ESO.EXE. Right click on that file, go to properties, then go to Compatibility. Click the check box at the bottom for Run As Administrator, then Apply, and Okay. Close all of the folders.

Open the Launcher and allow any and all updates to be performed. Once updates are complete, select "Game Options" (under the News category), and "Repair" from the drop-down menu. Allow the repair utility to run.

After all of this, the game should allow you to play it. If you're still having trouble getting your launcher open, please be sure to submit a support request so one of our agents can assist you directly!