I am currently using Windows XP Service Pack 2 and I want to switch to Windows 7 operating system. Will I have to do an upgradation or clean install of the same? Many a times the computer becomes slow due to various reasons like low performance, system becomes infected and so on. So, in such cases, when I will be using Windows 7, I want some information that how to know when to format and reinstall the operating system? All possible replies and suggestions are appreciated.
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