I left, and when I restarted, before Windows 7 Pro started, there was a black screen "Product Information not Valid" and that the computer didn't have the correct serial number, product number, and so on. I fussed with it a bit- deleting a few odd, unused programs, turned off and unpinned, descheduled, non-auto'd updated, and so on. Task Manager told an interesting story too- there were 135 Processes running and I saw CPU use at up to 90% and memory use up to 60% with the laptop sitting there idling! The Blue ball would just sit and spin for almost everything- and almost forever. HP Pavilion dv7 Startup Error Message > "Product Information not Valid"Ī friend handed over her HP dv7-3160us laptop (2010), complaining of poor performance- it was almost unusable.
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