UseAuthentification() and UseAuthorization differences in ASP.NET core 3.0

In the past few days struggling with implementing login on ASP.NET core 3.1 with razor
i have tried to use identityserver4 but it provides MVC template rather than razor. I actually got a simple example running but using it further has met with problems. Hence i decide to write some simple finding

what are the differences between authentication and authorization ?

app.UseAuthentication();
app.UseAuthorization();

in simple meaning,
authentication means we check a user is login or not
after login, we use policy to check the user claim and role whether they are authorized to access certain method
example role is Guest , Admin
example claim is email address, name

i put the reference here about authentification
https://visualstudiomagazine.com/articles/2019/04/01/aspnet-core-security.aspx
https://visualstudiomagazine.com/articles/2019/10/24/aspnet-core-security-2.aspx

An article on https://visualstudiomagazine.com/articles/2019/10/29/aspnet-authentication.aspx explains authorization nicely.

adding SSD harddisk to HP Zbook Studio X360 G5

After adding M.2 NVMe PNY branded SSD to my laptop. we open disk management in Windows and is presented with this screen

after choosing the newer GPT partition style, i select disk 0, right click and select new simple simple volume

click Next and then select the partition size we want to partition our drive. 

We then choose to assign it a drive letter

Format the disk

After the very quick format we will see the new drive in windows explorer and start using it.