The AddUpgrade program is an app that may be loaded on Mac OS X computers where it displays random advertisements and could also hijack popular web browser applications. The hijacking of web browsers from AddUpgrade is known to cause loading of questionable pages or sites that may promote various products and services.
The initial offer from AddUpgrade may be to add various web search features to your Mac computer and its installed web browsers. Much of what AddUpgrade offers can be considered as redundant or useless as many of its search features are found by using trusted sources like Google, Bing, or Yahoo. In most cases Mac computer users will not find any benefit to using AddUpgrade, which classifies it as a Potentially Unwanted Program (PUP).
Removal of AddUpgrade may be accomplished by using an antimalware program for your Mac computer, which will automatically find and remove AddUpgrade along with any of its installed components.
Use SpyHunter to Detect and Remove PC Threats
If you are concerned that malware or PC threats similar to AddUpgrade may have infected your computer, we recommend you start an in-depth system scan with SpyHunter. SpyHunter is an advanced malware protection and remediation application that offers subscribers a comprehensive method for protecting PCs from malware, in addition to providing one-on-one technical support service.
Why can't I open any program including SpyHunter? You may have a malware file running in memory that kills any programs that you try to launch on your PC. Tip: Download SpyHunter from a clean computer, copy it to a USB thumb drive, DVD or CD, then install it on the infected PC and run SpyHunter's malware scanner.