Does windows security enough?

I just reinstall the windows and thinking about AV, i want to use my previous AV its AVAST but since they put lots of ads lately, i thinking twice to go back. So i take a look at windows defender/windows security and i want to ask does windows security have shield feature like avast, such as file shield, web shield and behavior shield?

File shield as usual if you click suspicious .exe and file, av will stop/abort this so you dont infected.
Web shield will act if you visit some suspicious site, etc and they will abort your connection to the site to prevent any suspicious file to enter your computer
and last is behavior shield i dont quite understand what this actually does, but i think they will warn you if anything suspicious running in background.

I believe WS have File shield. But how about web shield and behavior shield ?

dalchina said:

Lots of discussion on much the same topic: please have a look and then add any further ?s

These are just examples: more if you search the forum for e.g.
defender enough
Is Windows defender and Malwarebytes pro enough? (Win10)
Is Windows 10 defender good enough
Is windows defender enough ?.

Does windows defender work well with other AV like Bitdefender free ?

mikelferdinan said:

Does windows defender work well with other AV like Bitdefender free ?

Windows Defender works well with Malwarebytes. Some would question whether you still need Malwarebytes. I use both. Malwarebytes has a paid version and a free version. As far as I know, the free version removes bad stuff, but doesn't prevent it from getting on your PC.

Regarding Bitdefender and Windows Defender, look through these links:

Bitdefender "Windows Defender" conflict - Google Search

The rule of thumb is to not use 2 anti-virus products as they may conflict, but certain combinations can work OK together if they are looking for different things. I have no personal experience with Bitdefender.

If you use Bitdefender, then Windows Defender might automatically be disabled for real time protection, but still be available for manual scans.

ignatzatsonic said:

Windows Defender works well with Malwarebytes. Some would question whether you still need Malwarebytes. I use both. Malwarebytes has a paid version and a free version. As far as I know, the free version removes bad stuff, but doesn't prevent it from getting on your PC.

Regarding Bitdefender and Windows Defender, look through these links:

Bitdefender "Windows Defender" conflict - Google Search

The rule of thumb is to not use 2 anti-virus products as they may conflict, but certain combinations can work OK together if they are looking for different things. I have no personal experience with Bitdefender.

If you use Bitdefender, then Windows Defender might automatically be disabled for real time protection, but still be available for manual scans.

Does windows defender prevent you from entering suspicious site and prevent some site sending suspicious file to your computer?

I installed BitDefender Free yesterday on w10 v1903 and I noticed some minor quirks. Other than that, it seemed to work fine.
I advise keeping Windows Defender and using common sense(tm).