[Fix] Account Unknown s-1-15-3 (100% Working)

Account Unknown s-1-15-3

The main reason a user profile, in most instances a domain profile, appears in User Profile Manager with the headline Account Unknown is that its SID (security ID) is invalid, or it’s just a hidden security account. The SID (security identification) Account Unknown signifies that the User Profile is no longer active. You can notice … Read more

What is Netlogon? Importance of Netlogon

What is Netlogon

Do you know what is Netlogon? It is one kind of security process in the Microsoft Windows server. It authenticates or allows users or devices in a domain service.  You may have heard about the Netlogon for the first time and don’t know what it is. If this is the case, then this article is … Read more

[Fix] Security Center Failed to Validate Caller With Error Dc040780 (100% Working)

security center failed to validate caller with error dc040780

While opening the ‘Event Viewer’, the security center failed to validate the caller with error dc040780 that might prompt on your PC screen. Now, you search the fixes here & there and find this article. Yes, indeed, you have come to the right place. In the entire article, I will compile all possible fixes of … Read more