Windows Client OS

Why Vista 32bit doesn’t use more than 3Gb of memory, even if you have more RAM installed

Found this link on twitter – a very interesting read indeed : http://www.geoffchappell.com/viewer.htm?doc=notes/windows/license/memory.htm

Installing Windows 7 from a USB key

Microsoft has announced that it will support Windows 7 installations from a USB key. This will allow people to install Windows 7 on systems that do not have a DVD drive (yes, Windows 7 will also run quite fast on your old notebook that only has 1Gb of RAM and does not have a DVD […]

Windows 7 Beta vs Release Candidate

If you are still running Windows 7 Beta, then it’s time to check out the Release Candidate version. Microsoft has reported on the Windows team blog that the Beta version will ‘stop working’ (in fact it will reboot every 2 hours) starting from July 1st. However, you can download the RC version, but the downloads […]

Fixing ‘Compatibility Mode grayed out’ or ‘Unable to enable Run as administrator’ on Vista / Windows 2008 Server

Ever wondered how you can set Compatibility Mode on executables under Vista / Windows 2008 server when the settings (or even the entire tab) has been disabled ? Or make the application “run as administrator” permanently, and you’ve found that this setting is disabled ? All of the settings in the Compatibility tab can be […]

Windows XP L2TP over IPSec dialup client VPN to a Juniper ScreenOS firewall, using Certificates

Before looking at the various configuration steps, we’ll have to take the following assumptions into account : – We don’t want to use the Netscreen Remote client, but we want to use the Windows XP built-in dialup VPN technology that allows us to build PPTP or L2TP/IPSec connections.  Juniper screenOS does not support PPTP (which […]

Icons Shortcuts and SendTo items in Windows XP/2003/Vista/2008

Fixing missing icons & shortcuts : Send To “Compressed Folder” is missing : Click Start->Run In the “open” box, type “cmd” (without the quotes) Click ok Enter the following command and press “return” rundll32 zipfldr.dll,RegisterSendto (you should not get any warnings or errors) The first time you are trying to zip, you may be prompted […]

Add ‘Command Prompt Here’ when you right-click in Explorer

Open your favourite registry editor (regedit will do just fine) Go to “HKEY_CLASSES_ROOT” Locate the “Folder” key Open the “shell” branch Create a new key called “Command Prompt Here” Open this key and create a new key called “command” Open “command” and double click the “default” entry (REG_SZ) Type the following :  cmd.exe /k pushd […]

IP Autotuning in Vista

At any given time, the amount that TCP can send is governed by three factors: the congestion window, the receive window and the number of bytes available to send. Without using TCP window scaling (which is disabled by default in previous versions of Windows), the maximum receive window a receiver can advertise is 64K bytes. […]

System/Disk Backup in Vista using command line script

Microsoft has implemented a really neat feature in Vista Business, Enterprise and Ultimate, allowing you to perform a full disk or even system backup, while the system is running. This new backup tool used Block Level backup and uses Volume Shadow Copy to backup open files (however, it is advised to close your applications while […]

Open a command prompt with system rights in Vista (and XP)

First of all, download psexec from the Microsoft website. http://www.microsoft.com/technet/sysinternals/utilities/psexec.mspx     From and elevated/admin command prompt (cmd.exe, “run as administrator”), run psexec –s cmd.exe    C:\>whoami peter C:\>psexec -s cmd.exe PsExec v1.83 – Execute processes remotely Copyright (C) 2001-2007 Mark Russinovich Sysinternals – www.sysinternals.com Microsoft Windows [Version 6.0.6000] Copyright (c) 2006 Microsoft Corporation.  All […]

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