How do I update APN Updater in Microsoft on my PC?

hold down the 'Windows key' (bottom row of your keyboard with flag) and press the 'R' key at the same time
type in msconfig and press 'ok'

select "startup" and uncheck apn
select 'services' and uncheck apn
click 'apply' 'ok'

This is an updater for the Ask Toolbar.

You can try to uninstall the Ask toolbar. Try uninstalling it with Revo Uninstaller. Revo first uses the APN's own uninstaller. Then, depending upon what radio button you have ticked, it can also pursue registry settings associated with APN that the primary uninstaller missed. You can manually select or unselect any that you want to remove or keep. The updater is a persistent thing that may reappear afterwards unless you clean out sufficient settings. You see, if the updater changed settings in your browser, simply uninstalled the toolbar is insufficient. So, below are instructions which may pertain to your specific browser.

You can try the manual uninstall directions on this page:

http://www.spywaretechs.com/remove-apn-updater/

Check out this forum
APN Updater stopped working and was closed

http://www.uninstallerfix.com/uninstall-errors/how-to-uninstall-apn-updater-guide.html

What operating version are you using?

APN updater is part of the ASK.com toolbar and should be removed as it contains malware.

Here is the page giving details on the program and how to remove it.

It basically captures your browsers home page.

http://www.shouldiremoveit.com/APN-Updater-30921-program.aspx

Uninstall Ask.com, APN updater comes with that... Uninstalling might help.

It looks like you have "ASK Toolbar" installed.
It is NOT a necessary application at all (quite the opposite)!
Here are good and detailed instructions on how to remove it:
http://softuninstall.com/remove-apn-updater-by-ask-com1.html

APN (Ask Parnter Network) Updater is a software utility that installs with the Ask.com internet browser toolbar and keeps it automatically updated. I suggest you remove the toolbar. Should remove APN Updater by Ask com