Every year user spends hundreds of dollars replacing and repairing slow running computer. Don’t buy a new one just yet. You just need computer tech support or you try the below mention process:
Is it difficult to run multiple tasks at once it means your computer having a difficult time operating efficiently when multiple programs are running. It is because the RAM is being forced to more information than it can hold. For that you have spyware or antivirus software. If antivirus not working than you have to check out disk fragmentation and after clean your drive, your PC work fast as much as possible.