Try RKILL. Noted by Grif at link to follow. RKILL found the pest in seconds. That does not mean it was gone.
Links to follow.
Hopefully someone can help me. My father is having a problem with his laptop. Internet pages are extremely slow to load. I did some checking and found that he had gotten the Delta Search browser hijacker. I removed both Delta Search programs using add/remove programs on the control panel. I also reset all the I.E. settings back to default. Delta Search now appears to be gone, but the pages still take forever to load. I did a full scan with Malwarebytes but it didn't find anything. Are there any registry keys that may have been changed? Would removing and reinstalling I.E. help the situation? If so, what is the process for doing this? I worked on this thing all day yesterday and I've run out of ideas!