The compressed memory feature is a Windows 10 feature that makes less use of Ram and disk space in order to provide smooth performance. If this function does not work properly, you will experience 100% disk usage that will slow down your PC.
The high CPU usage by anti-malware service is run by Windows Defender for its function. Windows defender keeps on checking for infected files in the background. This causes high CPU usage which you may have noticed.
When you see “your connection is not private” error in Chrome, it means that the browser cannot establish a private connection with the website that you are running.