How to replace Trend Micro Internet Security with Avast! free (what order)

[YXtanyaXY]

Hi,
I have Trend Micro Internet Security (Version 16.60.302 completely up-to-date); it came with a computer I have. I want to remove it and install Avast! (free version) instead ...
Is there anything wrong with the following order?

Downloading Avast! (Inactivate Trend totally)
and after downloading, UNinstalling Trend (I don't know best way - I'll figure it out)
and after several reboots then installing Avast!?
Thanks!

[Asyn]

1. Download avast! Free Antivirus: http://files.avast.com/iavs5x/avast_free_antivirus_setup.exe
2. Follow instructions: http://esupport.trendmicro.com.au/Pages/How-do-I-remove-old-or-new-versions-of-Trend-Micro-products-in-my-comp.aspx
3. Install avast! with the downloaded installer from point 1.
4. Reboot.

[YXtanyaXY]

1. Download avast! Free Antivirus: http://files.avast.com/iavs5x/avast_free_antivirus_setup.exe
2. Follow instructions: http://esupport.trendmicro.com.au/Pages/How-do-I-remove-old-or-new-versions-of-Trend-Micro-products-in-my-comp.aspx
3. Install avast! with the downloaded installer from point 1.
4. Reboot.

Thank you very much for the instructions!

I have not completed them but have downloaded the Avast! file.

I'll post the results when I'm done

[Asyn]

Thank you very much for the instructions!

You're welcome.

[YXtanyaXY]

Hi,
“Progress Report”
I downloaded this: "Trend Micro Diagnostic Toolkit"
But could not run it because:
"Cannot start Application" error
"Cannot download the application. The application is missing required files. Contact application vendor for assistance”.

I disconnected TREND from the internet but could not access any Web site (Including this)
“Server down” (I accessed them from other systems....)”

I am going to try”Control Panel”
TREND  expires tomorrow....

1. Download avast! Free Antivirus: http://files.avast.com/iavs5x/avast_free_antivirus_setup.exe
2. Follow instructions: http://esupport.trendmicro.com.au/Pages/How-do-I-remove-old-or-new-versions-of-Trend-Micro-products-in-my-comp.aspx
3. Install avast! with the downloaded installer from point 1.
4. Reboot.

Thank you very much for the instructions!

I have not completed them but have downloaded the Avast! file.

I'll post the results when I'm done

[YXtanyaXY]

Completed!
Via Control Panel
Thanks again for the help

Hi,
“Progress Report”
I downloaded this: "Trend Micro Diagnostic Toolkit"
But could not run it because:
"Cannot start Application" error
"Cannot download the application. The application is missing required files. Contact application vendor for assistance”.

I disconnected TREND from the internet but could not access any Web site (Including this)
“Server down” (I accessed them from other systems....)”

I am going to try”Control Panel”
TREND  expires tomorrow....

1. Download avast! Free Antivirus: http://files.avast.com/iavs5x/avast_free_antivirus_setup.exe
2. Follow instructions: http://esupport.trendmicro.com.au/Pages/How-do-I-remove-old-or-new-versions-of-Trend-Micro-products-in-my-comp.aspx
3. Install avast! with the downloaded installer from point 1.
4. Reboot.

Thank you very much for the instructions!

I have not completed them but have downloaded the Avast! file.

I'll post the results when I'm done

[Asyn]

1. Completed! Via Control Panel
2. Thanks again for the help

1. Good.
2. You're welcome.