Does your computer system automatically start up some applications while starting? If it does, it's time you disable them so that your PC takes less time to start. This can be done by typing command MSCONFIG in Run.
Use only one Internet browser, as multiple browsers slow the performance of your computer. Truth be told, there isn't a browser better than the Google Chrome. Make a habit of using it to browse the Internet.
There are a hundreds of other ways, the easiest of which have been pitched in here, in this write-up. The next time your computer calls 'Time Out!', you know what to do before calling for technical support. However, if none of the above methods do the trick for you, it's better to call a hardware engineer and let him sort out the issue. We might be knowing everything about our computer, but sometimes, it's better to hand a tricky computer system to a professional, rather than goofing up yourself. Isn't it?