Before merging with HP, Compaq manufactured a full range of laptop computers. Now they are manufactured by HP mostly with basic features.

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alt+f4 key and windows upgrade key not working

alt+f4 key not working and when am upgrading from home premium to ultimate windows anytime upgrade is giving error please try later help me

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gullapallivn, it all depends on what errors you get. My first guess, without knowing what they are, is that you have a driver issue. Since you did not give us any information on what computer you have I suggest that you get the complete drivers from this site. The alt+F4 combination is application and OS driven, not hardware. It is possible that it is disabled within your software. A reinstall of your OS may clear it up. Good Luck

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