[etu]

It also removes things related to security of the actual device and possibly network if something bad spreads.

It removes things such as: Windows Defender

It also removes "Restore Points & System Reset", so I guess that when it breaks you have to do a fresh install.

Source: https://github.com/Atlas-OS/Atlas/wiki/1.-FAQ#13-whats-remov...

[mtlmtlmtlmtl]

Good. Antivirus software that insists on running in the background is horrible and largely unnecessary.

A very significant portion of my family tech support has been about Windows Defender grinding systems to a half by keeping disk IO constantly at 100% in laptops with HDDs.

[davoneus]

Amen. People are amazed when I fire up SysInternals 'ProcMon' and show them how many hundreds of thousands of times their AV fires off in one single minute of monitoring. ()

I'll grant that kind of sustained checking is what you need to combat malware on Windows. But it damn well does have an effect on the overall system responsiveness.

() I did a q-n-d check; 1.3M events, and almost 300K were AV/Malware.

[Night_Thastus]

For casual users, modern implementation of Windows Defender has been pretty great. It has low overhead, doesn't tend to get in the way and does a good job of catching what is legitimately dangerous. It's not perfect, but for most people it's a great addon to common sense.

If it's grinding the system to a halt, there's something else already quite wrong.

[pie_flavor]

It's unnecessary for users smart enough not to get viruses. Pretty necessary for users that aren't.

[theCrowing]

restore points are deprecated since 11