Category Archives: Windows Server 2008 R2

Windows Server: Sample uses of SETSPN

SPN means "Service Principal Name". In Active Directory you can set an SPN with the command line tool SETSPN. Find below some usage examples which I use often: setspn -Q http/www.mywebsite.com ==> Check if the SPN "http/www.mywebsite.com" exists setspn -L MyServer ==> Show all SPNs for MyServer setspn -X ==> Search for duplicate SPNs in the current domain setspn -S http/www.mywebsite-com MyServer ==> Set the SPN for a specific Server object in AD. This also checks for duplicate Read more [...]

Windows: How to generate a SAN certificate via Web enrollment

In environments where you have a Microsoft PKI Infrastructure (AD CA) setup, you can create new certificates via web enrolment: https://ca-server/CertSrv This is straight forward for single-name certificates. If you wish to have multiple names for a certificate (Subject Alternative Names = SAN), you need a certain syntax in the "Atrributes" field of the web page: san:dns=corpdc1.fabrikam.com&dns=ldap.fabrikam.com You can add as many names as you want, separated by "&". Important: Read more [...]

Active Directory: Reset Expiry Date of an expired Password

Many companies have a policy that require their users to change their passwords regularly (e.g. every 90 days). In Active Directory, this is normally enforced via Group Policy. This works well, but can be problematic if the user is out of the office while the password expires. An example: If he or she is using a mobile phone to access company emails via ActiveSync, the access will be blocked once the password has expired. ActiveSync does not support password changes, so the user has no way to Read more [...]

Windows: Microsoft SQL Server 2008 R2 Setup Support Files cannot be uninstalled

I recently wanted to uninstall SQL Server 2008 R2 completely after I have upgraded to SQL Server 2014. The uninstall of the "SQL Server 2008 R2 Setup Support Files" did not work and produced the error: Microsoft SQL Server 2008 R2 Setup Support Files cannot be uninstalled because the following products are installed: Microsoft SQL Server 2008 R2 RsFx Driver Strangely, the "Add/Remove Programs" section did not list the "Microsoft SQL Server 2008 R2 RsFx Driver". To uninstall this "hidden" Read more [...]

Windows Time service doesn't start automatically on a workgroup computer

On a workgroup computer that's running Windows 7/8.1, Windows Server 2008 R2/2012 R2, the Windows Time service stops immediately after system startup. This issue occurs even after the Startup Type is changed from Manual to Automatic. Additionally, the following event is logged in the System log: Log Name: System Source: Service Control Manager Event ID: 7036 Level: Information The Windows Time service entered the running state. Log Name: System Source: Service Control Manager Event ID: Read more [...]

IIS 7.5: How to enable TLS 1.1 and TLS 1.2

In IIS 7.5, which is installed on Windows 2008 R2 servers, only SSL 3.0 and TLS 1.0 are enabled for HTTPS encryption by default. To enable TLS 1.1 and TLS 1.2 and disable the insecure SSL 3.0 protocol, add the following keys to the Registry of the server: [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\SSL 3.0\Server] "Enabled"=dword:00000000 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.0\Server] "DisabledByDefault"=dword:00000000 "Enabled"=dword:ffffffff [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS Read more [...]

Malicious Software Removal Tool (MRT): How to disable the monthly download and run via Windows Update

The Microsoft Windows Malicious Software Removal Tool (MRT) is downloaded and run with the monthly Windows Update cycle on many Windows versions (e.g. Windows 7, 8.1, 10, Windows Server 2012 R2 and others). It always uses the same KB/Patch number: KB890830 You can disable this in Windows Update by hiding the update, but it will be re-offered next month. To permanantly disable the offering via Windows Update, change this registry key: [HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\MRT] "DontOfferThroughWUAU"=dword:00000001 It's Read more [...]

Windows Active Directory: How to move the FSMO Roles via the GUI

All 5 FSMO roles of Active Directory can be moved via script, but lets see how it works via GUI (MMC): RID Master, Infrastructure Master, and PDC Emulator Login to the target DC via RDP Open "AD Users and Computers" Right-click the Domain and choose "Operations Masters..." Choose the appropriate tab Click "Change..." Click "Yes" to confirm Schema Master Make sure you are member of the "Schema Admins" group. Being in the "Enterprise Admins" group is not enough! Login Read more [...]

Windows: Run commands to start Control Panel items

Sometimes it is faster to access Control Panel items via command line than clicking and searching in the UI. To use a command, just press <Windows-Key>-R, which will open the Run window. Then just type the command and press <Enter>. For the .cpl files, the "control" command can even be left out, so that is even less to type. Control Panel Applet Command OS Accessibility Options control access.cpl XP Action Center control /name Microsoft.ActionCenter 8, 7 control Read more [...]

Win Server 2008 R2: How to enable the Disk Cleanup Utility

Sometimes it is convenient to cleanup some disk space by deleting unneeded files like service pack files, the temporary folder an so on. On Windows 7 workstation, you have the Disk Cleanup Utility to do this: By default, this tool is not enabled on Windows Server 2008 R2. To enable it, there are two possibilities: (Not recommended) Install the Desktop Experience feature. I don’t recommend this as installing the Desktop Experience feature will not only install Disk Cleanup, but a lot Read more [...]