HP support has downloads only for Vista and no other OS. BIOS probably doesn't support complete requirements of W7.
Whenever I go to "Start" and choose "restart" from the "Shut Down" drop down window, the system goes to a completely black screen and never progresses beyond that point. If I tell the system to "Shut Down" and then manually start from the power button, everything works just fine. When installing new software and it requires a system restart, the same problem occurs. Problem began some months ago and the first time I noticed the issue was in conjunction with a Microsoft upgrade where a system restart was necessary. Since then, the problem has persisted. Using Windows 7 Ultimate. HP Pavillion M8226X, 3GB RAM, 500GB Disk. System new IN 2009 and always updated with software & driver releases. H E L P . . . . driving me crazy. Thanks.

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