How to repair my file.key

I need your help my PGP key DE4EFCA3E1AB9E41CE96CECB18C09E865EC948A11

My keyring files: 0B36EF70D74943009EAA4C0451C77C723B422286.key and A4B0B81FD6179E189B8F7A496888908B89DE5A50.key are not working.

Please Help me. How to repair my file.key ?

Can you please explain what exactly does not work?

My key is not signing, certifying and encrypting correctly.

This is the problem
problemPGP1

Other problem
problemPGP

Well, this seems to be no issue with your key, then, but with your installation.

Have you done as the error message suggests?

Please take care to install Gpg4win with administrator rights but use it as a normal user. Should you have installed it as user originally you need to first deinstall it before installing it again in the recommended way.

I did it and the problem continues… My key is not signing, certifying and encrypting correctly.