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Welcome to Justanswer.com, my name is Dustin.I'm sorry to hear about the issue you are having, I will do my best to help you resolve it.
It may be easier to set your main account as an administrator account. That way, you have full admin access and can install or uninstall programs as you see fit.
Before I can explain how to do that, I need to know what version of windows you have on your computer, such as windows xp, vista, windows 7 or windows 8?