In your PC's Control Panel, go to Add/Remove programs:

Uninstall Nokia Software Updater (if there are more than one entries uninstall all of them)

Check the following directories (if they exist, you can delete them):

Windows XP, Windows Vista 32-bit or Windows 7 32-bit:C:\Program Files\Common Files\Nokia\Service Layer\AC:\Program Files\Nokia\Nokia Software Updater

Windows Vista 64-bit or Windows 7 64-bit:C:\Program Files (x86)\Common Files\Nokia\Service Layer\AC:\Program Files (x86)\Nokia\Nokia Software Updater

Windows XP:C:\Documents and Settings\All Users\Application Data\Nokia\Nokia Service Layer\A

Windows Vista: C:\Users\All Users\Nokia\Nokia Service Layer\A

Windows 7:C:\ProgramData\Nokia\Nokia Service Layer\A

Delete the following file:

%temp%\adl_flash.log