IT Knowledge Base

I had a Windows Backup created with FileHistory but was not able to restore anymore because the DB seamed corrupted. Anyway the files were still there but they had the UTC Timestamp added. So here a script to remove the timestamps:

Before: Test (2017_08_03 13_49_28 UTC).jpg
New: Test.jpg

$regex=" \(\d{4}_\d{2}_\d{2} \d{2}_\d{2}_\d{2} UTC\)"

Get-ChildItem *UTC* -Recurse | Where-Object {$_.Name -match $regex} | Rename-Item -NewName {$_.Name -replace $regex} -Verbose


Warning: As always, use it on your own risk. If you should have the same file with multiple timestamps then you need to extend the script a bit. This one just works with unique files with timestamp.

1. Download and Install “Microsoft Virtual Machine Converter”
2. Open Powershell with Elevated Privileges
3. Import Module / Convert VMDK
Import-Module “C:\Program Files\Microsoft Virtual Machine Converter\MvmcCmdlet.psd1”
convertTo-MvmcVhd -SourceLiteralPath c:\source\scource.vmdk -DestinationLiteralPath c:\destination\ -VhdType FixedHardDisk -VhdFormat vhdx

To get the powershell version run:

$psversiontable

To run another version of powershell run for example:
powershell -version 2.0

If you run the command without the management tools then you won’t have the tabs to configure the snmp-service. By the way the argument –Whatif shows you in advance what would be installed if you run the command. So to actually installe it run the command without –WhatIf.

#Add-WindowsFeature -Name SNMP-Service -IncludeAllSubFeature -IncludeManagementTools –Restart –WhatIf

Show-Command opens a new dialog where you can browse comfortably trough all commands.

You can use the Get-EventLog. Example:
Get-EventLog -LogName Application -Source "*Update*" | Format-List
Get-EventLog -LogName Application –Newest 10

Like ssh you can run a remote session in powershell.

Test if remote session is enabled
#Test-WsMan [Computername]

If you get a result, it should be up and running. Otherwise you need to activate it on the remote server like this.

Enable PowerShell Remoting on a Server
1. Run Powershell as an administrator
2. #Enable-PSRemoting –Force
This command starts the WinRM server service and sets it automatically to start with the system. It also creates a firewall rule that allows incoming connections.

Workgroup
If your computers aren’t in a domain you need to do a couple of more steps to make a trust between them. You need to edit the TrustedHosts on both sides. You could put the IP Adresses comma-seperated instead of * to further restrict it. With the * it will allow any host.

1. #Set-Item wsman:\localhost\client\trustedhosts *
2. #Restart-Service WinRM

Execute a Remote Command
#Invoke-Command -ComputerName COMPUTER -ScriptBlock { COMMAND } -credential USERNAME

Start a Remote Session
#Enter-PSSession -ComputerName COMPUTER -Credential USERNAME

Get-ChildItem -r *lana*.mp3 | Copy-Item -destination D:\Lana

Short example:
dir –R –I *.exe

Long one:
Get-ChildItem -recurse –include *.exe

Search inclusive text:Get-ChildItem -recurse *.exe | Select-String searchtext

Today i tried to install VMWare vSphere PowerCLI and got the vbscript error message.

Follow this steps to solve the problem:

1. Create a backup
2. Delete following registry entries:

Win32 Bit
HKCU\SOFTWARE\Classes\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}
HKCU\SOFTWARE\Classes\CLSID\{F414C260-6AC0-11CF-B6D1-00AA00BBBB58}

Win64 Bit
HKCU\SOFTWARE\Classes\Wow6432Node\CLSID\{B54F3741-5B07-11CF-A4B0-00AA004A55E8}
HKCU\SOFTWARE\Classes\Wow6432Node\CLSID\{F414C260-6AC0-11CF-B6D1-00AA00BBBB58}

3. Run CMD as an Administrator
4. regsvr32 vbscript.dll
5. regsvr32 jscript.dll