I'm working on a Dell Inspiron 530S running Vista Home Premium sp2 32 bit. Symptoms are I can't open MS Update from Programs list. I can get there using IE but MS Update fails to find updates no error number just a message. Unable to download any typical malware tool using IE. No error message just download never begins. Can't download Chrome installer either. I have installed rkill, rogue killer, tdsskiller, malwarebytes, and combofix using a flash drive. From Safe Mode while logged in as local administrator I have run all of these tools in default mode. Several malicious items were found and removed but the symptoms haven't changed. This is the last stop before a re-install.