Reload of Xp only boots correctly in safe mode

[geno368]

It is a pc that was built by a computer store inhouse. It has XP home prem sp3 running an amd processor @ 1.7 ghz. It has 512mb ram and an 80gb hd. It has a SiS mobo. I have eliminated any infections. Now when I boot normally, It freezes up on a blank screen. I went through the whole reload from the XP disk with my license key. I haven't activated yet because safe mode won't let it. When I go to safe boot, I get the desktop fine. Why is it not booting? Thanks for any insight...

[GlassFish]

Hello,
Do you have an anti-virus installed in your computer? If yes then when you are in the safe mode do a virus scan. If you find any viruses or worms remove them and then reboot again to see if it starts normally. You said you have not activated the Windows XP operating system. So, I guess you have the Windows operating system CD with you. The last option is to format your computer and this time just as you install a new copy of the operating system, please remember to activate it first. And get an good anti virus software installed.