[Resolved] Cannot install Avast free version

Avast Free Antivirus / Premium Security
1

Hi, As with most software applications, I try before I buy. I will be using an information I learn here for my next blog post. If you would like credit, or prefer not to be quoted, please message me a note. Thank you.

I am trying to install the Avast free version and it will not run.
I have tried uninstalling and reinstalling. Same results.
The avast! Antivirus service is not running.
It complains it cannot start a dependency.
The dependencies are:

  • AswMonFlt (cannot find any such entry in services)
    – FltMgr (cannot find any such entry in services)
  • Remote Procedure Call (RPC) (started)
    – DCOM Server Process Launcher (started)
    – RPC Endpoint Mapper (started)

Please tell me more about FltMgr, where I should be able to find it, why it might not be running, if this is a known problem with the Avast free version. Recommended next steps Thank you.

2
  • Which version of avast! Free…??
  • OS…?? (32/64 Bit…? - which SP…?)
  • Other security related software installed…??
  • Which AV(s) did you use before avast!..??
3
  • Which version of avast! Free v2014.9.0.2021 (definitions: unknown - never installed)
  • OS…?? (32/64 Bit…? - which SP…?) Windows 7 Pro, SP 1 (build 7601, Version 6.1) 64-bit
  • Other security related software installed…?? MSE, MalwareBytes (have turned these off during install)
  • Which AV(s) did you use before avast!..?? See above, plus a long list of others long since removed.
4

You need to uninstall MSE per the vendor’s instructions PRIOR to installing Avast. You can’t have 2 AV’s on the same machine; turning it off won’t work either.

5

First, be sure to get rid of all remnants of your prior installed AV(s)…!!
→ http://www.avast.com/faq.php?article=AVKB11

Then:

  1. Download avast! Free Antivirus: http://files.avast.com/iavs9x/avast_free_antivirus_setup.exe
  2. Follow instructions: http://www.avast.com/uninstall-utility (Run this tool for all prior installed avast! versions…!!)
  3. Reinstall avast! with the downloaded installer from point 1.
  4. Reboot.
6

Thanks,

I will try that now. Might be a little while before I get back to you (plane is landing).

7

OK, awaiting your reply.

8

Actually, there is no mention of this in any of the screens. I have snapshots of each of them for my article.
MOST AV’s don’t care if you are running a second, or even third AV. Norton is a notable exception.

9

This was very helpful. and I follow all your instructions in your post. Nevertheless I was still having trouble. However, after repeatedly trying to START the service, it did eventually start. Once it did, I had few (but not zero) difficulties. They are not worth mentioning here. The point is I got the application installed.

Thanks very much.
Is there way to mark this resolved?

Now to post on other issues. :smiley:

10

You’re welcome. You can edit your initial post and add [Resolved] to the subject.