Why Is Your Windows 11 Computer Slowing Down All of a Sudden
This might, however, be the reason for your Windows 11 computer to suddenly slow down, become unresponsive, and give a longer time for booting. A recent update from Microsoft could be the only cause of that. The update KB5072033 completely changes how a system service is implemented, which might cause performance issues with your computer.
The Cause Always-on AppX Deployment Service (AppXSVC)
The engagement is mainly because of a service known as AppX Deployment Service (AppXSVC). Such service is responsible for managing applications from Microsoft's Store. This service should only be running when there is demand prior to the update; now, after having KB5072033 installed, AppXSVC starts up with Windows and runs in the backend all the time.
This constant activity consumes system resources, and the performance impact is most noticeable on computers with mid- to lower-end specifications.
The Problem You Cannot Disable This Service
The most natural thing would be to disable the service, but Microsoft has purposely made sure that users cannot do that. It is not an error in the system, but a change that is to heighten security.
- Protected Service Microsoft has changed AppXSVC into a "Protected Service."
- Linked to TrustedInstaller This service has been linked to the "Trusted Installer," which is a very high-privileged system account, and users, including the administrator, cannot override it.
- Access Denied All efforts to modify or disable this service using either the Services panel (services.msc) or the Windows Registry will be denied. The system will deny access or revert any changes automatically.
A Warning About Online "Fixes"
Indeed, many videos and guides provide solutions to disable AppXSVC. However, such methods do not work or are actually out-of-date and temporary for operating systems with the KB5072033 update because Microsoft's changes have rendered these old tricks ineffective.
Current Situation for Users
Currently, no official safe method exists for disabling the service without corrupting the operating system's integrity. It is assumed that most hardware today should manage this additional background load without problems, in the opinion of Microsoft. Users of less powerful systems would not have any option to work around the performance problems until a new update releases from Microsoft or another solution is discovered.
