I have no experience with AG, but FWIW this is from an experienced AG user:
It's not about optimization. Some stuff will simply not work on older than 6 version and you can thank my friends at windows and office.If you really understand your OS, and how to configure Appguard, the protection in v5 is not significantly improved for home users.
v5 has lsass protection, which v4 does not, but that is mainly important for a business network, it is not so important for a home environment.
But if you are not expert in your OS and in Appguard configuration, don't use v4 without getting the relevant advice from the pros. There are important configuration changes needed in order to optimize it to Windows 10 and Office 365.
- AppGuard 4.x is supported on Windows 10. There are no default policy additions in the GUI of AppGuard Solo.
You are able to ADD applications to the Guarded Apps tab based on your installed software and security concerns.
Any restriction or exceptions you wish to ADD to User Space are your call.
- You do not need to ADD Lsass.exe. That is already part of the protection and is not a configurable option.
- SOLO supports Microsoft secure boot. Version 4.x doesn’t. But the key protections are supported on Win10.