Changing file properties is quite easy with PowerShell.
Remove ReadOnly attribute:
Set-ItemProperty -Path 'C:\Program Files\desktop.ini' -Name IsReadOnly -Value $false
Change CreationTime (90 days back in time):
Set-ItemProperty -Path 'C:\Program Files\desktop.ini' -Name CreationTime -Value ((Get-Date).AddDays(-90))
Looking for a hypervisor on Windows 8? Look no further. If your Windows 8 is Pro or Enterprise Hyper-V is available as a feature, and can be enabled easily as long as your system complies with there requirements:
Open Windows Features to check if Hyper-V is enabled:
To enable the Hyper-V feature check the box and press OK:
When the Hyper-V feature is enabled your computer needs to be restarted:
After restart Hyper-V will appear on your Start Screen:
Hyper-V on your Windows 8 can be managed using Hyper-V Manager as any Hyper-V running on a Windows Server:
For some reason the 64-bit versions of Windows has a problem indexing PDF files. Windows Search uses IFilter to help it index files, and the PDF IFilter for 64-bit Windows is missing. (This probably applies to 64-bit Vista and 64-bit XP as well).
To detect whether a computer has the IFilter installed or not open Indexing Options from Control Panel:
Choose Advanced:
Find the PDF extension on File Types tab:
As shown above PDF Filter Description says “Registered IFilter Is Not Found“
To fix this problem download and install:
When everything is installed your filter description for pdf extensions should say “PDF Filter” instead of “Registered IFilter Is Not Found” in Indexing Advanced Options:
Before being able to search PDF-files the Index has to be rebuild. This is done by clicking Rebuild i Indexing Advanced Options:
Please note: Rebuilding index can take a long time if your disks contains large amount of data.
Use this command to start headless VirtualBox named NameOfVirtualBox:
Start /b 'C:\Program Files\Oracle\VirtualBox\VBoxHeadless.exe' -s "NameOfVirtualBox"
Or using PowerShell:
Start-Process -FilePath 'C:\Program Files\Oracle\VirtualBox\VBoxHeadless.exe' -ArgumentList @("-s","NameOfVirtualBox") -NoNewWindow
Note: If you close your command prompt the processes with your headless VirtualBox will get killed.
Link to VirtualBox manual : http://www.virtualbox.org/manual/ch07.html#vboxheadless
Problem:
This behaviour is seen when connecting a Vista computer with Atheros AR5007 Wireless LAN adapter installed to a new wireless accesspoint. (In this case a HP laptop computer with preinstalled Vista Home Premium connecting to Cisco Linksys EA6500).
When inspecting network configuration you will find DHCP-address is assigned correctly – BUT no traffic is recieved on the wireless adapter. You are unable to ping any network devices, and renewing DCHP-address will also fail.
Other devices have no problem using the wireless network.
Resolution:
Install SP53261 from hp.com
This new Atheros Wireless LAN Driver will replace the preinstalled driver, and resolve the problem for these Atheros adapters:
The new driver is compatible with a wide range of Windows versions:
Windows PowerShell introduced parameter validation which drastically reduces lines of validation code – and replaces it with a couple of markup tags:
ValidateCount (int minLength, int maxlength)
How many arguments are allowed for a parameter.
[ValidateCount(1,3)]
[String[]]
$Collection
ValidateLength (int minLength, int maxlength)
Length (in characters) of a parameter argument.
[ValidateLength(1,8)]
[String[]]
$Phone
ValidatePattern (string regexString, Named Parameters)
Valid patterns for a parameter argument.
[ValidatePattern("[0-9][0-9][0-9][0-9]")]
[String[]]
$Pin
ValidateRange (object minRange, object maxRange)
Valid range for a parameter argument.
[ValidateRange(18,120)]
[Int]
$Number
ValidateSet (string[] validValues, Named Parameters)
Possible values for a parameter argument.
[ValidateSet("One","Two","Three","Four")]
[String]
$TextString
ValidateScript (scriptblock validValues)
Custom script for validation
[ValidateScript({Test-Path $_ -PathType 'Container'})]
[String]
$Path
ValidateNotNull ()
Input is not null
[ValidateNotNull()]
[String]
$Id
ValidateNotNullOrEmpty ()
Input is neither null or empty
[ValidateNotNullOrEmpty()]
[String[]]
$UserName
Read more about validating parameters on MSDN:
Or use PowerShell built-in help:
These Events are common when troubleshooting problems related to Health Service certificates i System Center Operations Manager 2007:
21021 – Could not load Certificate
Check if certificate exists and the Health Service has permissions to read it.
20052 – Certificate not loaded (name does not match)
Make sure Issued To match the actual computername.
20053 – Certificate loaded
The certificate is loaded – and everything should be working.
By default the option to view FTP site in Windows Explorer is hidden in Internet Explorer 9 (IE9).
To enable it you have to go to Internet Options -> Advanced -> Enable FTP Folder View as shown below:
Once this option is enabled you should see Open FTP Site in Windows Explorer in the View-menu.
(Keep in mind that this option is only visible when you are on an FTP page).
Note: Press ALT to show Internet Explorer menus.
All of a sudden my Windows 7 ended up crashing with Blue Screen of Death when put to sleep, and I started investigating this behavior.
After a couple of crashes a pattern started to emerge: Blue Screen of Death was only an issue when the laptop was running on batteries – and NOT when AC was plugged in.
This led me to investigate the memory crash dump using Debugging Tools for Windows which indicated the problem was probably caused by dne64x.sys (part of DNE – Deterministic Network Extender)
Even though Citrix indicates DNE is practically flawless…..
With tens of millions of copies of DNE installed and over 12 years in the market, there are no known crash issues with DNE. However, because DNE is a kernel-level NDIS module that relies on packets from other drivers, we sometimes see crashes that appear to be in DNE. Generally these are caused by bugs in other products or drivers
… I decided to reinstall DNE using Citrix guidelines:
This solved the problem – and my laptop sleeps tight again without crashing!
Creating an EventLog entry using PowerShell is shown below:
Write-EventLog -LogName 'Application' -Source 'MyEventSource' -EventID 1000 -EntryType Warning -Message "This is a test of writing to the Event Log using PowerShell."
Note: The Event Source needs to be created before writing entries to the Event Log. (See this post for further info: Create Event Source with PowerShell)