Why is my brand new computer slowing down to a crawl?

Episode 1305 (1:17:50)

Hal from Thousand Oaks, CA

Hal bought a new HP and recently it's been running very slow. Leo says that if Hal is running third party security software, then it's likely that his antivirus is causing the slow down. Leo advises getting rid of it. Windows' own Microsoft Defender security software is good enough. He'll also find that he may have to download their uninstaller to do it.