Original title: Boo-Boo-Boop at end of bootup, comes several times, like 15 seconds or more apart
My name is Tom. After a big battle trying to remove a Trojan.zbot and finally getting rid of it, after running a number of malware removal tools, I noticed that at the end of a bootup I heard a boo-boo-boop sound--three short and fast sounds, like morse code, kind of dull, as though muted. It comes at the very end of bootup just before the last two icons appear on the desktop, two gadgets--a round clock and the weather temperature. Bootup is when programs boot up, so it acts to me like a program trying to boot but can't, and so Windows gives me the boo-boo-boop. It comes 3 or 4x, separated by 15 or 20 seconds. Then it quits. The computer, so far as I know, is running okay. A friend told me to google bios deep codes, but later said if the sound comes at the end of bootup no need to do that...,he was thinking it came during bootup. He told me that if the PC is running okay, learn to live with it. I am one of those who wants to make things right, however, so I am asking the community. I bought the PC from Dell, Windows 7, a few years ago. It has been very reliable. I wonder if the malware removal tools deleted some part of a program... now it won't open. I also deleted some junk from Programs and wonder if I went too far. Is there an analyses program I can run on this computer from online that will tell me what is wrong?