please help! how to remove CMD every startup

Look for that software in add /remove programs and either remove it or repair it.

Have you uninstalled BrightVPN or never had it?
Try to find the folder path mentioned in the dialog.

The shortcut that results in that dialog appearing might be in either of these places
"C:\ProgramData\Microsoft\Windows\Start Menu\Programs\Startup"
"C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup"

If it is in neither of those places then you might have to track it down using MS SysInternals AutoRuns.
my list of AutoRuns links [post #16] - TenForums
my ditty - Notes about AutoRuns indicator colours [post #76] - TenForums


Best of luck,
Denis

In post #4 above, I suggested looking for that folder path [in File explorer].

You can check the other things I suggested but if you really never installed that application then I suggest running a Defender Quick scan [note that there is no benefit to running a Full scan].
How to Scan with Windows Defender - TenForumsTutorials
Windows Defender Offline Scan - TenForumsTutorials


Best of luck,
Denis

I'm glad it's gone but its origin remains a mystery.
Bright VPN is available as an add-on to Edge - Bright VPN - Edge add-ons - but that folder path in C:\Program Files (x86) puts me in mind of a separately-installed application.

Thanks for the rep,
Denis

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