Errors on computer. On shutting down my computer iaanotif.exe is not responding.?

My computer will not shut down correctly. It is showing iaanotif.exe is not responding. I have been told it could be a virus. I have AVG antivirus and it is up to date and is not showing infections. I am also getting an error occasionally when exiting a webpage - "iexplore.exe - application error - Instruction at "0 x 6230430" referenced memory at "0 x 6230430". The memory could not be "read". Click OK to terminate the program." is one of the errors. Another is when I open a MS Word or Excel 97 file it says it is being used and asks if i want to make a copy. I have Windows XP Media 2005. Could the MS excel/word issue be because the program is old and I installed on a new system? I am able to use the file ok after ignoring the error message. The errors started occurring a couple weeks ago, purchased computer in January.

Errors on computer. On shutting down my computer iaanotif.exe is not responding.?spyware removal

According to your description,there are some regsitry errors in your computer to cause "computer error".You need to clean you computer.

Every time you install and uninstall software on your computer and surfing online you create junk in the registry.You need to scan and clean your computer with registry cleaner.Good Regisry Cleaner will fix(NOT hide) almost all computer errors ,improve your computer and Internet performance dramatically by 300% or more!