Is Avast stopping windows 10 create a boot log file?

Avast Free Antivirus / Premium Security
1

I can’t get Windows to generate ntbtlog.txt, the boot log file.

I have tried setting Avast to delayed and Passive mode but the log file still doesn’t get created.

Anything else I can try before I uninstall Avast?

2
  • Which Avast…? (Free/Premium/One)
  • Which version/build of Avast…?
  • OS…? (32/64 Bit…? - which SP/Build…?)
  • Other security related software installed…?
  • Which AV(s) did you use before Avast…?
3

Avast Free.
22.1.2504 (build 22.1.6921.709)
Windows 10 Version 10.0.19043 Build 19043
No other AV software.
Always used Avast.

4
  1. Enable debug logging (Menu > Settings > General > Troubleshooting > Enable debug logging) and reproduce the issue.
  2. Follow instructions: https://support.avast.com/article/33/ and post the File-ID or name of the Support-File here afterwards.
5

OK. This is the id:
5Y6I1

6

Hi, I forwarded it, let’s see…

7

OK, Thanks. Do you know if there is a way to stop Avast running at boot so I can see if I get a bootlog?

8

Hi, according to the devs, your issue isn’t related to Avast.

9

OK. One of the tests to find out why Windows won’t create a boot log file is to disable any antivirus software…

I guess I will have to just uninstall it to find out? The Delay mode should have proven this though right?