But since you already uninstalled and reinstalled it: did you use the MCPR tool to uninstall ? If not, I suggest uninstalling, using the MCPR tool according to instructions on this forum, and then reinstall.
Have you had any other security software (like Norton/Symantec) on your system ? They typically leave leftovers behind which can cause problems later if you don't use the correct removal tool.
Other than that, I can suggest scanning with free MBAM and SAS in case you are infected, maybe an online scan by Kaspersky, and chatting with tech support.
Oh, make sure your time/date settings are correct !