Category Archives: Windows

Fix: RDP error The function requested is not supported

When trying to connect to a server or machine via Remote Desktop Connection you will get the below error which is strange as one would normally connect without any issues.

"Remote Desktop Connection
An authentication error has occurred.
The function requested is not supported
Remote computer: XXX.XXX.XXX.XXX"

After some research I found that this is due to a Windows Update patch which was released recently that is CVE-2018-0886 for RDP. So if the workstation was updated and the server was not yet.

There are two options for this.

Patch the server with the CVE-2018-0886 (Recommended)

Update the policy on the local computer (Not recommended but in case of emergency)

  • On the computer open Group Policy
  • Go to Computer Configuration > Administrative Templates > System > Credentials Delegation
  • Change Encryption Oracle to Remedition to Enabled
  • Change Protection Level to Vulnerable

Open MSTSC and you will be able to connect to the server.

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Fix: Windows 10 Home to Pro upgrade error 0x803fa067

I came across an upgrade issue when I was upgrading Windows 10 Home to Windows 10 Pro using the Change Product Key feature. I first entered the default Windows 10 key from Microsoft VK7JG-NPHTM-C97JM-9MPGT-3V66T to convert the Windows 10 Home to Windows 10 Pro and when I clicked the start button to start the upgrade, I get the error saying that the the installation does not have a valid digital license with the error code Unable to upgrade your edition (0x803fa067).

The solution is very simple

– Boot the computer
– Open the activation screen
– Change the Product Key to VK7JG-NPHTM-C97JM-9MPGT-3V66T
– Disable internet connectivity by disabling network card
– Click start for the upgrage

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How to: Find the installation date of an operating system

Sometimes I would need to find the date when the operating system was installed. Thou it’s difficult to have everything in shape with your inventory, if you have missed this part when an Operating System was installed, here’s a PowerShell solution to that.

Open PowerShell as admin
Type $osdate = get-wmiobject win32_operatingsystem
Type $osdate.ConvertToDateTime($os.InstallDate) -f "MM/dd/yyyy"

This will give you the date when the Operating System was installed

On the other hand, if you wish to go through registry yourself, browse to the location below

HKLM:\SOFTWARE\Microsoft\Windows NT\CurrentVersion\InstallDate

The result is in timestamp, so you need to convert it with this link.

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How to: Add AzureAD user as local admin

After joining a computer to AzureAD you will login with a user and will be automatically added as a local admin. The trouble is when logging with other users. These users will automatically set as users to the computer. From the Computer Management Console there is no way to add an AzureAD as when you click on Add and Locations, there is no location for the AzureAD. If you look at the current AAD user in the Computer Management and Local Users and Groups you will find the current user as AZUREAD\noel.pulis.

Luckily there is a way to add an additional AzureAD user as a local admin.

– Open CMD (Command Prompt) as Admin
– Type NET Localgroup Administrators AzureAD\additionaluser

Once this is ready, open the Local Users and Groups and you will find the AzureAD user part of the local Administrators Group.

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Fix: No Suitable Directory Servers Found when accessing OWA and ECP

When accessing ECP or OWA on your Exchange server you will be the below Server Error saying that No Suitable Directory Servers Found in Site and connected Sites. On the Event Viewer you will get the error 0x80040a02 (DSC_E_NO_SUITABLE_CDC).

The below solution if for Exchange 2003, 2007, 2010 and 2013. Open the Domain’s Group Policy Management and edit the Default Domain Controllers Policy or your server policy as below.

Computer Configuration
Policies
Windows Settings
Security Settings
Local Policies
User Rights Assignment
Mange auditing and security log
Add ‘Exchange Servers‘ or ‘Exchange Enterprise Servers‘ to that policy.

Restart the Exchange server to apply the computer configuration.

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Fix: Cannot demote server Access is denied

When demoting a server from an existent Active Directory you will be prompted for the credentials with an error saying

The Operation failed because: The attempt at remote directory server to remove directory server was unsuccessful. “Access Denied”.

This issue is due to the fact that the object is set with Protect object against Accidental Deletion

To fix this open Active Directory Sites and Services. Find the server which you are trying to demote and expand it. Right click on NTDS Settings and click on Properties. Click on the Object tab and un-tick the Protect object from Accidental Deletion.

Retry the demotion and it will work. If it doesn’t then check the Active Directory Users and Computers and check if the computer account has the Protect object from Accidental Deletion enabled. Make sure to click on Advanced Features.

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Fix: Azure AD Connect unexpected error on sign in

You setup the domain, verified and you are in the process of configuring the Azure AD Connect Tool, you will be asked to enter the username and password for the tool to connect to the Azure AD.

The connector immediately stops with an error at the first step under the Express/Custom settings page titled “Connect to Azure AD” with the below error.

Unable to validate credentials. An unexpected error has occurred

unexpectederror1

This error most probably will show because you are using a user which ends with @outlook.com and the connect tool will not work with an service-bound Outlook username. To fix this issue and work successfully simply create a new ‘Global Admin’ user on the AD which ends @yourdomain.

In my case this worked like a charm.

 

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Fix: Windows Server Backup The process cannot access the file

When running Windows Server Backup to another location and you get the error “The process cannot access the file because it is being used by another process”.

Capture

To fix this you would need to look on the backup logs from the location %windir%\logs\windowsserverbackup.

In the error log file you will find

Error in deletion of [C:\System Volume Information\001.dat] while pruning the target VHD: Error [0x80070020] The process cannot access the file because it is being used by another process.

In my case, what I have done is that I deleted all the files in the target folder of the backup, re-run the backup and it worked.

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