HP Desktop 400-321CN win8 Exchange win7 procedure

The company will be a problem of the WIN8 system to replace the Win7 system, today engaged in a half-day to find out, the originalWindows 8Desktop All-in-one machine use isuefi+gptcombination of hard drives, and opens theSafe Boot mode, but currently exceptWindow 8other than theWindowsThis mode is not supported by the system. so if you need toto modify other systems, such aswidndows 7, must work in the traditionalbios+mbrmode. If you do not modify any of the settings, you will not be able to boot from the disc to install other operating systems.

The following experiences are available for you to share:

Special Reminders:

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My machine hp Desktop 400-321CN win8 Win7 Pro operation steps

Boot into BIOS setup:

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HP Desktop 400-321CN win8 Exchange win7 procedure