Windows XP SP1 in 2026: Unofficial Guide!
1) Install Legacy Update to install all the Windows XP SP1 updates (except the KB904574 update) Unofficial Upgradables To: Internet Explorer 7 Windows Media Player 11 Microsoft Office 2007 (not sure about 2010) Virtual PC 2007 SP1 + Rollup Browsers (with using kernelxp.dll wrappers by roytam1) Chrome 49.0.2623.112 Firefox 52.9.0 ESR Mypal 74.1.x Serpent 52 (@roytam1's fork) Windows XP SP1 Notes: Replace the shell32.dll, shdoclc.dll, shdocvw.dll, explorer.exe, and sxs.dll with the ones from XP SP3 to C:\WINDOWS\SYSTEM32, in so you can get certain apps like Mypal 74.1.x and Serpent to work on XP RTM unofficially.