SP3 Hanging At Boot

I was on my computer, listening to music, and then all of a sudden, my sound just stopped. Totally. Checked the volume control and everything. I was obviously curious as to why, so for some reason, I opened up the task manager to take a look at what was running. It was then that I saw "loader.exe" and "iexplore.exe" running. I didn't have Internet Explorer open, and I've never seen loader.exe before. Naturally, I googled it and was informed that it was some sort of spyware/malware. I ran MalwareBytes-AntiMalware and the results came back clean. Still, I searched for "loader.exe" on my computer and deleted it, and its prefetch file. The EXE was in a temp folder.After doing all of that, I decided to reboot to see if my sound will come back. Much to my dismay, not only did my sound not come back, Windows XP ITSELF did not come back either. My computer restarts and does the whole Asus thing it does at the beginning, and then the screen goes black. I never end up at the boot screen.