The Alert.tentech.net domain is used by adware to display a pop-up that claims to be a 'PC Technical Support Notice' that alerts users of potential issues. The adware connected to Alert.tentech.net may suggest computer users to call '+1-888-999-0536' for expert technical support because of possible computer issues. Security experts advise not to call '+1-888-999-0536' that is listed on the pop-up by Alert.tentech.net because you may receive instructions to download and install Potentially Unwanted Programs (PUPs) or potentially harmful software. The adware responsible for the Alert.tentech.net pop-up might have entered your system through bundling with freeware that you have installed via the 'Express' or 'Typical' option. The adware related to the Alert.tentech.net pop-up can be purged from your system with the help of a reputable anti-spyware tool.