Patch Tuesday is still a thing, if you were like me and knee deep in zombies when your PC decided now was the best time to update. The April patch KB4549951 is likely the reason for your sudden lag.
This security update includes quality improvements. Key changes include:
- Addresses an issue that prevents certain apps from installing if they are published using a Group Policy Object.
- Addresses an issue that prevents a wired network interface from obtaining a new Dynamic Host Configuration Protocol (DHCP) IP address on new subnets and virtual LANs (VLAN) after wired 802.1x re-authentication. The issue occurs if you use VLANs that are based on accounts and a VLAN change occurs after a user signs in.
- Security updates to the Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Cloud Infrastructure, Windows Virtualization, Microsoft Graphics Component, Windows Kernel, Windows Media, Windows Shell, Windows Management, Windows Fundamentals, Windows Virtualization, Windows Storage and Filesystems, Windows Update Stack, and the Microsoft JET Database Engine .