



It can be applied to a live Windows XP system which has SP1, at minimum, installed or it can be slipstreamed (integrated) in any Windows XP installation media,” the developer says in the description of its pack. “Windows XP Unofficial SP4 is a cumulative update rollup for Windows XP (x86). POSReady 2009 fixes are said to be fully compatible with Windows XP installations, but it’s pretty clear that they cannot offer the same level of protection as the legitimate updates specifically aimed at this platform would do. Developed by Harkaz, who already has a good background on large pack of fixes for Windows, this new service pack includes all previously released updates for Windows XP 32-bit, as well as POSReady 2009 updates launched by Microsoft after the April 2014 retirement date.
