This is a quick post showing how you can sync your domain controllers with an external time source like time.windows.com or ntp.pool.org. By default, all machines in the domain will sync time from the domain controller which is the internal time server. If you have more than one DC then time will sync from the DC that holds the PDC emulator FSMO role. To check which DC is the PDC emulator in your domain you need to run:
command in PowerShell like so:
Once the PDC emulator role is established there are a few commands we need to run in order for time to sync. These are (run on the PDC emulator in PowerShell):
If you’re about to upload Hyper-V or VMware vSphere virtual machine(s) to Microsoft Azure you need to properly configure the connection in Microsoft Virtual Machine Converter.
Subscription ID (which everyone should hopefully know), as well as Certificate Thumbprint are required to make this happen. Subscription ID can be retrieved either via the management portal or Get-AzureSubscription commandlet but Certificate Thumbprint is not so easy.
Here is the MVMC screen I’m on about:
If you have connected to your Azure subscription in the past using Powershell, chances are you already have the certificate that’s required. In my case, I like to keep things separated so thought it would be best to generate a new cert and use that cert specifically for MVMC related tasks. Continue reading →
You would have thought that installing .NET 3.5 on Windows 8 will be relatively straight forward – wrong answer!
The easiest way to do this is to go to Control Panel –> All Control Panel Items –> Programs and Features and simply add .NET Framework 3.5 (includes .NET 2.0 and 3.0)
but you are likely to hit one of the following errors:
“Windows couldn’t complete the requested changes. Windows couldn’t connect to the internet to download necessary files. Make sure that you’re connected to the internet, and click ‘Retry’ to try again. Error code: 0x800F0906”
“Update NetFx3 of package Microsoft .NET Framework 3.0 failed to be turned on. Status: 0x800F0906.”
“Update NetFx3 of package Microsoft .NET Framework 3.0 failed to be turned on. Status: 0x800F081F.”
“Update NetFx3 of package Microsoft .NET Framework 3.0 failed to be turned on. Status: 0x800F0907.” Continue reading →
My workplace has finally decided to start encrypting their mobile devices with BitLocker. After number of laptops completed successfully (and without any major issues) today we have hit problems when BitLocker wizard would fail with the following message:
“BitLocker Setup could not find a target system drive. You may need to manually prepare your drive for BitLocker”
So far only one machine was affected but there could easily be others. Solution to this issue was not immediately obvious but its essentially due to Windows (or BitLocker wizard) not being able to shrink the drive to create the system partition that’s required for BitLocker (there was only one partition). Trying to manually shrink the drive using Disk Management would not work too as “Size of available shrink space in MB:” was equaling to 0:
Now this number was showing 44MB before I ran Windows Defrag tool but now is 0MB meaning you cannot shrink the drive at all (not even by 1MB!) In Windows Explorer, internal hard drive was showing 120GB in size with roughly 60GB free so there was plenty of free disk space available in order to re-size the partitions.
Two quick fixes that were applied to finally resolve this are as follows:
Since the problematic machine was a laptop (Dell Latitude E6230) hibernation was turned off (powercfg -h off in command line)
System Restore points were also deleted (cleanmgr is the command, then More Options tab, System Restore and Shadow Copies and Clean up)
After this I re-run BitLocker drive encryption wizard and all was happy again!
Side note – trying to manually prep the drive using bdehdcfg i.e. bdehdcfg -target c: shrink -size 300 -quiet -restart was not working too.
Something rather strange crept up today and its do to with non-Unicode language settings in Windows 7 which weren’t working properly. Basically some of our printers didn’t print barcodes properly and after some extensive troubleshooting the culprit was language in Windows that was set to English (United States) instead of English (United Kingdom) You can find system locale settings for non-Unicode programs under:
<strong>Control Panel-->Region andLanguage-->Administrative tab-->Change system locale...</strong>
Another quick post to show how you can quickly deploy fully working DHCP server with multiple scopes in a matter of seconds. In my case it was a single server with 90 very different scopes and doing this manually would be just soo boring and long that’s unreal. Unfortunately Windows Server 2012 wasn’t an option so no PowerShell love but Windows Server 2008 R2 is still pretty decent and using netsh wasn’t as painful as it seemed. To get us started we need to install the DHCP Server role and start the required service (dhcpserver):
sc config dhcpserver start=auto
net start dhcpserver</strong>
Next step is to authorize DHCP server in the enterprise so we can actually use it to dish out IP addresses:
Quick post to show how you can sync your domain controllers with external time source (time.windows.com or ntp.pool.org for example). By default, all machines in the domain will sync time from the domain controller which is the internal time server – if you have more than one DC then time will sync from the DC that holds the PDC emulator FSMO role. To check which DC is PDC emulator in your domain you need to run netdom /query fsmo command like so:
Once PDC emulator role is established there is few commands we need to run in order for time to sync, these are (run on PDC emulator):