scottypotty4x4

Looking for help. I have a cabinet that a friend built for me. It just had MAME and some arcade games. I tried adding emulators but had little success. She said she could update it and gave me a flash drive with a new version of LaunchBox that did this automatically. I installed and got virus messages. I deleted it, then went and purchased LaunchBox after realizing that it was probably downloaded. Now I get error message and it will not let me install. I have deleted all folders associated and run a virus scan. Please help or am I out $30 for this licence?