We tried to upgrade the computer to run Flight Simulator FSX faster and it didn't seem to work. Current Processor runs at 2.67Ghz so that might be part of the problem. Put 8 Gig of ram at 1333MHz (may be too slow too) a new graphics board: Radeon R7770 and new power supply. Going back to Best Buy to return upgrades and buy a new computer if the processing speed is the issue. Programs take forever to load and hang up at times.