Error Code 0xe001f90f

Hello Jenny,
We are sorry for the difficulties you are currently experiencing.
Could you please let us know the name of the AVG product you have installed in your pc? also provide us the screenshot http://avgclick.me/getscreenshot of the pop up you received? so that we are happy to assist you better.
Please feel free to contact us for any further assistance. Thank you.

I was trying to uninstall and reinstall AVG because it kept trying to get me to buy the pro and I don't want it.

Jenny, For your info, just in case that you are unaware, you can post the screenshot here in your topic. Click on 'Answer' & then click on the 'Image' [mountain symbol] & follow the instructions. 
AVG Guru

Hello Jenny,
We are sorry for the difficulties you are currently experiencing.
Could you please let us know the name of the AVG product you have installed in your pc? also provide us the screenshot http://avgclick.me/getscreenshot of the pop up you received? so that we are happy to assist you better.
Please feel free to contact us for any further assistance. Thank you.