Tray Icon and Program Won't Open Normally

Hello Tracy,
We are sorry to inform you that your CPU which does not support SSE2 hence AVG can't be installed.
Thank you.

I have Windows XP with service pack 3. I've never had an issue ever before with AVG. The version I currently have is AVG Free Edition 16.131.7924 I got on  my computer last night and realized my AVG icon down in the system tray was gone. Went reading and researching online and decided to try an uninstall it and re-install it, however, trying to UNINSTALL it from the control panal add and remove won't work, I get an error that says: Unexpected error Sorry, we've run into a problem during installation. (Error code: 0xc007001d) I went to start, programs and tried to open AVG from there and it won't open. The ONLY way I can get it to open is to go into my pictures folder, right click on a picture and click to scan with AVG, then it opens. While I had it open, I clicked to update it, then closed the program, shut down my computer and restarted it, and the AVG icon is still missing from my system tray and still won't open when I click the program to open it. I checked to make sure I have the box checked for it to load at start up, it's checked, I checked in Services to make sure it's set for automatic and it is, I checked in Msconfig to make sure it has a check in the box, it does. When I right clicked on a picture and clicked scan with AVG to get it to open, I did a full scan on my computer and have no viruses. I don't understand what the issue is and why my icon disapeared and why the program won't open normally now. Please help. Thank you in advance.

Well which anwser is the correct answer since I got two different replies? Now after reading AF's post as well, I'm even afraid to use the AVG Uninstaller tool for fear I won't be able to re-install it and won't have ANY protection at all then. But as of right now, I don't even really know if it's working and protecting my computer.

Haven't heard anything back after posting the requested info. Any other suggestions? And the way things are now, is AVG even protecting my computer? Thank you in advance.

Thank you for providing necessary information, Tracy.

We appreciated your efforts in trying to fix the issue. In this case, we suggest you to reinstall your AVG program as suggested in this article: http://avgclick.me/howtoreinstallAVG. Please let us know if the issue persists. Thank you!

I have an AMD Athlon XP Processor 2.08 GHz.

I just looked at the link you posted above, and my computer does meet the minimum system requirments. Any other suggestions? The way it is now, is it even protecting my computer? I am still able to download updates for it. Thank you in advance.

Well which anwser is the correct answer since I got two different replies? Now after reading AF's post as well, I'm even afraid to use the AVG Uninstaller tool for fear I won't be able to re-install it and won't have ANY protection at all then. But as of right now, I don't even really know if it's working and protecting my computer.

Thank you, I uninstalled and manually removed the left overs and have now installed a different free virus protection.

OK Tracy, No probs… Thanks for returning to the Community & posting.
AVG Guru

Tracy,
We would like to confirm that the error code 0xc007001D represents that the processor on your PC is old and not compatible with AVG installation. Please consider upgrading your PC to minimum system requirements as in http://support.avg.com/SupportArticleView?urlname=What-are-AVG-system-requirements-and-supported-opearting-systems and then try to install AVG.
Feel free to let us know if you require any further assistance.