DOS windows flash just after boot-up?

[Rapidrob]

About 30 seconds after my computer finishes boot-up, I will see two spaced apart black "DOS" type windows for just a fraction of a second.
I've not seen this before. Is this normal or do I have some sort of malware/trojan ( none show with a Malware bytes scan)
Windows 11 Pro 24H2 26100.3194
Any ideas as to what the two flashed windows are?

 

[The Shadow 2023]

Rapidrob,
Have you looked in your Task Manager, to see what's running at Startup?

When working on any PC, that's one of the first things I do. Seems like there is always something in there that can be set to "Disable".
Take a look!

Shadow

 

[Xploit Machine]

Does this action happens everytime the system is being restarted / turning ON?

 

[loganreed]

nice

 

[RasulGreen]

The flashing black "DOS" windows during startup are likely caused by non-Microsoft services or startup programs. To address this, open System Configuration (msconfig), go to the Services tab, check “Hide all Microsoft services,” and disable unnecessary third-party services. Also, check the Startup tab via Task Manager and disable unneeded startup programs. Restart your computer to see if the issue persists. Additionally, run a thorough antivirus scan or use Autoruns by Sysinternals to identify unusual startup programs.