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I get this error all the time after double clicking on the icon of League of Legends. However, if I click OK and close the error ( C:\Windows\system32\nvapi.dll is either not designed to run on Windows or it contains an error...) the Launcher shows up just fine and everything else works. Is there a problem with my computer? How can I get this annoying Pop-up to go away? Any help would be appreciated. I am running Windows 7 64bit on an AMD Athlon 64 X2 3800+, 3GB RAM, Dell motherboard 0RY206 with Nvidia chipset MCP61, ATI Radeon HD 2600 XT with 512MB RAM. All drivers and everything seem to be installed fine, no unknown hardware devices or yellow exclamation warnings. If you need more info please ask.