If you need to install sp1 on windows xp home/professional edition and if you have the winlogon crack replace it with its original version (if the 30 dayz are up, boot into safe mode.) Install Windows XP Sp1. Open notepad and paste this into it...
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindows NTCurrentVersionWPAEvents]
\"OOBETimer\"=hex:ca,82,b8,55,d4,04,b5,cf,cc,5b,24,97
and save it as a .reg file somewhere simple like C:winactivation.reg
(Save a copy of your original key just incase it goes wrong)
Double click the reg file and enter it into the registry. To see it it went right type oobe/msoobe /a into the run box and it should say \"windows has been activated\". Now open notepad again and add this.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionRun]
\"WPA\"=\"regedit.exe /s c:winactivation.reg\"
(c:winactivation.reg being where you saved the the reg file (don\'t forget if ure changing the directory use double slashes // instead of 1 / eg C: = C:)
save the file as run.reg and open it.
Use this website if u have Corp edition and u want to make a new winxp cd with built in sp1 (u can ignore it)
Sp1 corp site