Why my QuickBooks won't open? I need a solution…

I am a QuickBooks user and facing a mistake within it. My QuickBooks won't open, and this is often hampering my work. I’m unable to use my QuickBooks and this is often making me unable to manage my financial works. Is anybody conscious of the difficulty and its solution? If you recognize the way to solve this QuickBooks won't open issue, let me skills I can solve this error in my system. The error in QuickBooks also making my PC slow and therefore the Windows is responding slowly with the mouse and keyboard command. i want an answer to repair it as soon as possible, please give me any stable answer to unravel this issue, in order that it won’t come . And that i also want to understand the causes of QuickBooks won't load issue in order that I can work to form the condition better for my QuickBooks to figure.