What is WINDOWS\system\amvo0.dll

Question

computer problem

Answer 1

I did a Yahoo! search on that name and found only suspicions of it being malware.  

If you recently did an anti-virus scan and now this file's name is showing up on reboot as "can't be found", it's probably a left-over from the virus removal.    If so, you may be able to get rid of the phony message by going into msconfig and keeping the file from starting up.  Here's how:

1. Click on the Start->Run menu item.

2. In the Run text box, type in msconfig, then press Enter.

3. In MsConfig, click the Startup tab.

4. See if there's an entry for that filename.  If there is, clear the checkbox next to its name.

5. Click OK.

6. Accept the reboot option.

Hopefully, the message won't come up on the next reboot.  You will, however, get a message about your configuration having changed.  In fact, if you just click OK, you'll get this message after every reboot, however, if you click the checkbox and click OK, the message won't come up again unless and until you make another msconfig change.

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On the other hand, if this isn't a "file can't be found" problem, you may have malware.  If you have an anti-virus, I suggest you make sure it has the latest virus definitions and run a scan with it in Safe Mode or Safe Mode with Networking.  Both often prevent malware from protecting itself.  If you don’t have one, many people here swear by AVG (it’s free).

I suggest you also download Ad-Aware 2008 and Spybot S&D (they’re free), install them, update them and run them. If any of the above (or any anti-malware, for that matter) doesn’t seem to be able to run properly or get rid of everything it reports finding, try running it again in Safe Mode.

Also, turn off System Restore to evict any copies of bad stuff that might be lurking there.  

To get into Safe Mode or Safe Mode with Networking:

1.Log out and reboot your machine.

2.When the machine starts the reboot sequence, press the F8 key repeatedly.

3.Select Safe Mode or Safe Mode with Networking from the resulting menu.

4.When the login screen comes up, log in as Administrator.  By default, Administrator has no password.

5.The machine will continue booting, but the Windows desktop will look different.  You won't be able to see the Internet, for instance.

6.When you're finished, log out and reboot back into normal mode.

Note that even if the anti-malware programs get rid of the malware, they may not be able to reverse the effects.  Search the Web for possible fixes.

Update and run everything regularly, not just when you think you already have malware.

Good luck.