why I can not create a VC++ empty project on my windows using vs 2015 ,vs2017,vs2019

Question

in VS 2015, there is a warning dialog 'null' is null or is not object when i try to create a VC++ project:

then i get another warning:

error from HRESULT:800A138F

in VS 2019 i got the warning:

Object reference not set to an instance of an object,

Answer 1

You could try steps below to resolve this issue:

1.Windows+R and enter regedit to open Registry Editor , make sure the value data of Enabled key is set to zero.

We can find the key here:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\FipsAlgorithmPolicy

2.Restart VS to check if the issue goes away, if it persists, close all vs instances and delete all folders under path: C:\Users\xxx\AppData\Local\Microsoft\VisualStudio . It will clean all VS cache to reset the VS settings.

Note: AppData is a hidden folder.