Tips for improving the performance of Hypervisor-based virtual machine images

There are several improvements that can be made on the Hypervisor Host machine and on the virtual machines running on this host machine (guest machines). If possible the host machine should run Windows 2008 Server R2 since the latest version of Windows Server does offer significant performance improvements over Windows Server 2008 1. Settings on…


How to fix Server Manager Errors after installing updates (HRESULT:0x800F0818 / HRESULT:0x800B0100)

Symptoms You install several Updates. After the successful installation, you notice you cannot add or remove features/roles in the Server Manager. Error: Unexpected error refreshing Server Manager: Exception from HRESULT:0x800F0818 Alternatively you can also get: Server Manager: Unexpected error refreshing Server Manager: No signature was present in the subject. (Exception from HRESULT: 0x800B0100) Resolution First…


Creating a custom Data Collector Set with SQL x86 counters on an x64 OS

In one of our recent CSS cases, we noticed a strange difference between the Windows Small Business Server (SBS) 2008 x64 and Windows Server 2008 x64. One could create a Data Collector Set (DCS) with SQL Server x86 counters, collect and view the samples just fine on the SBS 2008 x64, out of the box….