A service pack for Windows is usually meant to fix Bugs and bring along the one or the other new function. But also performance increases could be seen in the past. HT4U.net presents, if Enthusiasts can expect their systems to perform better with Windows 7 and SP1.
A quick patch update to Windows can extend the useful life of a PC. To take the fear out of Upgrading Windows 98 to Windows XP, rely on this guide. - PCSTATS Tips