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The ports were internal and your solution worked - thanks
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The ports were internal and your solution worked - thanks

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Devices which have been attached to p.c. USB ports and not changed still work. Some ports which have been used frequently no longer respond
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Devices which have been attached to p.c. USB ports and not changed still work. Some ports which have been used frequently no longer respond

USB ports on Windows XP Pro Svc Pack 3 not responding when devices attached to some ports

The Microsoft Legacy Operating System topic includes legacy versions of Microsoft operating systems prior to Windows 2000: All versions of MS-DOS and other versions developed for specific manufacturers and Windows 3/3.1, Windows 95 and Windows 98, plus any other Windows-related versions, and Windows Mobile.

Microsoft Legacy OS

Microsoft Windows XP is the sixth release of the NT series of operating systems, and was the first to be marketed in a variety of editions: XP Home and XP Professional, designed for business and power users. The advanced features in XP Professional are generally disabled in Home Edition, but are there and can be activated. There were two 64-bit editions, an embedded edition and a tablet edition.