Windows 7 activation error – invalid product key

Are you having problems installing Windows 7 due to an invalid product key? Microsoft have published two articles describing issues which you may be experiencing… Windows 7 installation error message 0xC004F061 when trying to install Windows 7 using an upgrade product key Windows 7 activation error due to invalid product key, which describes several other…

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No audio in Windows Vista

Are you having problems with sound in Windows Vista?  Do you get an error message saying ‘No audio device installed’?  Are your headphones not working? Microsoft have developed a clever downloadable package which scans your computer, detects common sounds problems (e.g. audio services not running, audio device disabled, audio device muted, audio device not set…

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