XP Crash/ cannot use 'safe mode' to boot

Hello Kathryn,
We understand how something like this can really try your patience.
Could you please brief the exact issue you are facing with AVG? so that we are happy to assist you better in fixing it.
Also let us know the name of the AVG product you have installed in your pc? so that we can assist you better.
Thank you.

I need to access the command prompt without access to the start menu. Or should I just ask tech support to help?

Hello Kathryn,
We understand how something like this can really try your patience.
Could you please brief the exact issue you are facing with AVG? so that we are happy to assist you better in fixing it.
Also let us know the name of the AVG product you have installed in your pc? so that we can assist you better.
Thank you.