how can I disable avast window when windows start?

hello,

When windows starts, the avast window open. this happened since avast update to 2015 version. I didn’t find in setings any option to disable this. does anybody know how can i disable it.
I have AVAST INTERNET SECURITY 2015.

thanks

Do you mean the update complete window where you have to click “finish”?

no. every time I start windows the avast main window open (like when you put avast in STARTUP)

Ah, that’s one sign of a corrupt install if that happens. You need to do a clean install to fix it:

You need to perform a clean install:

Note: It’s important you used the stub online installer from the one I linked… NOT the offline one.

Note: You need to be ONLINE during this install (online installer works in all cases whereas offline sometimes doesn’t)

1.Download your version of avast! and the avastclear tool:

Avast Free Antivirus
Avast Pro Antivirus
Avast Internet Security
Avast Premier

Download Avast Clear Tool

  1. Uninstall Avast by control panel [If you don’t have Avast in control Panel go to #3]
  2. Uninstall in safe mode using Avastclear. [Running Avastclear is normal mode will give a prompt to go into Safe Mode]
    Check : Once uninstalled check in device manager>view>show hidden devices if there is anything related to avast with a yellow triangle… if so, uninstall it and reboot.
  3. Install the version you downloaded.
  4. Reboot.

Free: If you have the Free version, register the product for free for a year from the avast! UI.
Paid: If you have a paid license, insert the license key/activation code after the reboot at stage 6.

If you have any questions, please don’t hesitate to ask. It’s better to ask than make a mistake and start over again with the process.

I did what you say.
It works…

Thanks a lot!