Change default Windows network Icon to something Cool!!

To change the network type please do the following:

Hit Winkey + R to open Run prompt and type gpedit.msc

Navigate to: Computer Configuration | Windows Settings | Security Setting | Network List Manager Policies

Choose your Network name from the right pane. In my case network name was wardvissers.local

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So the policy look likes

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Now we have a Smiley for my wardvissers.local domain Smile with tongue out Cool!!

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Exchange 2013 and .NET 4.5 fixes KB2803754 & KB2803755

Microsoft published an important hotfix for .NET 4.5 earlier this year. It wasn’t picked up on by many, therefor a quick write up on the matter.

Since Exchange 2013 is built on top of .NET 4.5, it is recommended to install the hotfix on all Exchange 2013 Mailbox and Multi-Role servers. The hotfix will reduce the memory consumption of the store worker processes.

If you’re using Windows Server 2008 R2, the hotfix is KB2803754 and can be requested here; when using Windows Server 2012 the hotfix is KB2803755 which can be requested here.

After installing the hotfix, you need to do one of the following things:

  • Set the following registry key:
    HKLM\Software\Microsoft\.NETFramework\DisableRetStructPinning=1 (REG_DWORD)
  • Set the COMPLUS_DisableRetStructPinning environment variable to 1

I’d prefer the first option. Note that you need to restart the server for the change to become effective.

Thanks to EighTwOne

ADK for Windows 8.1 Preview Available

Here is a quick summary of the changes in ADK for Windows 8.1. MDT 2013  and ConfigMgr 2012 R2 requires ADK for Windows 8.1.

Windows 8.1 Image Size (Preview)
  • Windows 8.1 Preview Code Image (x86), 2.13 GB (WIM), 7.65 GB expanded on disk.
WinPE 5.0
  • Profiling in WinPE 5.0 is removed
  • WinPE 5.0 x64 supports 4 TB of RAM (still 64 GB for x86)
  • Scratchspace set automatically to 512 MB when having more than 1 GB of RAM, otherwise 32 MB
USMT 6.3
  • Support for Windows 8.1
  • You cannot use USMT 6.3 to migrate settings from Windows XP to Windows 8.1
  • Supports Office 2013 (hotfix available for USMT 5.0).
Windows 8.1 Upgrade / Update
  • You are likely to have more free space available on the disk after upgrading Windows 8 to Windows 8.1
  • Windows 8.1 upgrade time, less than 20 minutes
Misc. Updates
  • Export compressed recovery image (/Export-Image)
  • Cleanup base components when superseded. (/StartComponentCleanup /ResetBase)

 Download

Configuring disks to use VMware Paravirtual SCSI (PVSCSI) adapters

PVSCSI adapters are high-performance storage adapters that can result in greater throughput and lower CPU utilization. PVSCSI adapters are best suited for environments, especially SAN environments, where hardware or applications drive a very high amount of I/O throughput. PVSCSI adapters are not suited for DAS environments.

This table shows the support matrix for use of Paravirtual SCSI adapters for data disks and boot disks for the various guest operating systems and ESX versions. Support shown in the table is from the listed ESX/ESXi version and later versions.

Guest operating system

Data Disk

Boot Disk

Windows Server 2012 (64 bit only)

ESXi 5.0 Update 1, ESXi 5.1

ESXi 5.0 Update 1, ESXi 5.1

Windows Server 2008 R2 (64 bit only)

ESX/ESXi 4.0 Update 1, ESX/ESXi 4.1, ESXi 5.x

ESX/ESXi 4.0 Update 1, ESX/ESXi 4.1, ESXi 5.x

Windows Server 2008 (32 and 64 bit)

ESX/ESXi 4.x, ESXi 5.x

ESX/ESXi 4.0 Update 1, ESX/ESXi 4.1, ESXi 5.x

Windows Server 2003 (32 and 64 bit)

ESX/ESXi 4.x, ESXi 5.x

ESX/ESXi 4.x, ESXi 5.x

Windows 7 (32 and 64 bit)

ESX/ESXi 4.1, ESXi 5.x

ESX/ESXi 4.1, ESXi 5.x

Windows Vista (32 and 64 bit)

ESX/ESXi 4.1, ESXi 5.x

ESX/ESXi 4.1, ESXi 5.x

Windows XP (32 and 64 bit)

ESX/ESXi 4.1, ESXi 5.x

ESX/ESXi 4.1, ESXi 5.x

Because the default type of newly hot-added SCSI adapter depends on the type of primary (boot) SCSI controller, hot-adding a PVSCSI adapter is only supported for those versions that support booting from a PVSCSI adapter.

Paravirtual SCSI adapters also have these limitations:

  • Hot add or hot remove requires a bus rescan from within the guest.
  • Disks with snapshots might not experience performance gains when used on Paravirtual SCSI adapters if memory on the ESX host is overcommitted.

Active Directory Replication Status Tool

The Active Directory Replication Status Tool (ADREPLSTATUS) analyzes the replication status for domain controllers in an Active Directory domain or forest. ADREPLSTATUS displays data in a format that is similar to REPADMIN /SHOWREPL * /CSV imported into Excel but with significant enhancements.
Specific capabilities for this tool include:

    • Expose Active Directory replication errors occurring in a domain or forest
    • Prioritize errors that need to be resolved in order to avoid the creation of lingering objects in Active Directory forests
    • Help administrators and support professionals resolve replication errors by linking to Active Directory replication troubleshooting content on Microsoft TechNet
    • Allow replication data to be exported to source or destination domain administrators or support professionals for offline analysis

System Requirements

Supported Operating System

Windows 7, Windows 8, Windows Server 2003, Windows Server 2008, Windows Server 2008 R2, Windows Server 2012, Windows Vista, Windows XP

      • ADREPLSTATUS does not install on server core installs of Windows
      • Windows 2000 not supported due to lack of support for .NET Framework 4.0

    Domain membership requirements:

      • Must be joined to the Active Directory domain or forest you intend to monitor

    .NET Framework requirements:

      • .NET Framework 4.0 (you may be prompted to install .NET Framework 3.5.1 first on Windows Server 2008)

    Required User Credentials:

      • Target forest/domain user account

    Supported DC OS versions that can be monitored by ADREPLSTATUS:

      • Windows Server 2003
      • Windows Server 2003 R2
      • Windows Server 2008
      • Windows Server 2008 R2
      • Windows Server 2012

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Active Directory Accidental Deletion – Prevention

Accidental deletions in active directory can cause havoc and unfortunately. This may have been avoided and secondly could have been fixed in less than 10 % of the actual time spent if the environment was using one of the latest features that we included in Windows 2008 R2 ( Active Directory Recycle Bin ). Most critical situations arise due to accidental human /tool interference or configuration and it is important to be able to come out of such situations within minimal down time, Accidental Deletion in Active Directory is one such situation.

Powershell Enable Protected From Accidenta lDeletion:
Get-ADobject -Filter * -SearchBase “DC=wardvissers,DC=local” | Set-adobject -ProtectedFromAccidentalDeletion $true

Add Extra Windows 2012 server to DirectAccess NLB Cluster

First you install Server 2012 and you add the Remote Access Server Role.

And Install

KB2788525: You cannot enable external load balancing on a Windows Server 2012-based DirectAccess server.

 

Add or Remove Server

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Server 2012 Dedub

Start Windows PowerShell. Right-click the Windows PowerShell icon on the taskbar, and then click Run as Administrator.

Run the following Windows PowerShell commands:

PS C:\> Import-Module ServerManager
PS C:\> Add-WindowsFeature -name FS-Data-Deduplication
PS C:\> Import-Module Deduplication
PS C:\> Enable-DedupVolume E: & Enable-DedupVolume D:

And wait….

dedub

Saving already 240GB on my home lab…. Dedub is great

Migrate a certificate authority from Windows 2008 R2 to Windows 2012

Today I was moving my testlab enterprise root CA from a Windows 2008 r2 server to a new Windows 2012 with a different server name. To accomplish this, I used this excellent Technet Post . I encountered no problems!