PC Optimizer Pro does not generally receive good reviews, as of 2015. Some of the complaints associated with the program include recurrent pop-ups, risks to computer security, reduction in PC performance and difficulty with removing the software.
Once installed, PC Optimizer Pro runs a fake scan and identifies false registry errors that only the paid version can correct. Most users are usually not aware when they install the program, as it comes bundled with other free software such as download managers. Although seemingly legitimate, PC Optimizer Pro poses serious security risks to a computer by downloading malware and may lead trusting computer users to pay for false services.