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.
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
– Disable internet connectivity by disabling network card
– Click start for the upgrage
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.
PowerShell as admin
$osdate = get-wmiobject win32_operatingsystem
$osdate.ConvertToDateTime($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
The result is in timestamp, so you need to convert it with this link.
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.
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.
User Rights Assignment
Mange auditing and security log
Exchange Servers‘ or ‘
Exchange Enterprise Servers‘ to that policy.
Restart the Exchange server to apply the computer configuration.
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
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
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.
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”.
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.
When having workstations on workgroups trying to use resources from the server, you will need to enter the credentials everytime you restart the machine.
Continue reading How to: Automate server login on a workgroup using a batch file
When enabling the option for Windows Update to download updates for other products, you will get a blank white page on the Internet Explorer. The URL you visit is http://www.update.microsoft.com/microsoftupdate/v6/vistadefault.aspx?ln=en-gb.
To fix this when the IE window opens click on the Compatibility View button on the top and it will show the page.