You need to perform clean installation of Windows 7 by formatting your Windows XP or install on different hard drive partition keeping XP and Windows 7 in dual boot mode.Well don’t get disappointed you can do this, first perform Widows XP to Vista upgrade then Windows Vista to Windows 7 upgrade. if yes then here is one more way to upgrade Windows XP to Windows 7.Though there are exceptions—Lenovo’s Think Pad PCs are notably clean of crapware, for example, and of course Microsoft Signature PCs are pristine—I’ve generally preferred the latter option in order to ensure that the Windows version I’m starting with is the one Microsoft released, and not one over-burdened by unnecessary utilities and applications.But with Windows 8, new options are available under the umbrella of Push Button Reset.The initial Windows XP release was followed by the release of Windows XP 64-Bit Edition (v2002), Windows XP Media Center Edition and Windows XP 64-Bit Edition (v2003).On April 8, 2014, Microsoft will cease official XP support.You won’t see the term Push Button Reset anywhere in Windows 8: That’s what this set of functionality is called internally.Instead, this technology is exposed as two features in the OS, PC Reset (“Remove everything and reinstall Windows”) and PC Refresh (“Refresh your PC without affecting your files”). Both offer the same basic functionality: They will remove and then clean install Windows 8 in a very fast manner, returning the OS to its default configuration.
With previous versions of Windows, you had two choices for nuking the PC: You could use the PC maker’s restore routine, either via a built-in partition on the disk or separate optical disc, or you could boot the PC with a Windows Setup disk and install a clean version of the OS, albeit one that would probably require some additional driver installation after the fact.
existed that would allow any driver, unsigned or signed to be loaded.
Atsiv worked by installing a signed "surrogate" driver which could be directed to load any other driver, thus circumventing the driver signing requirement.
Microsoft called the XP release its most important product since Windows 95.
Along with a redesigned look and feel to the user interface, the new operating system was built on the Windows 2000 kernel, giving users a more stable and reliable environment than previous versions of Windows.