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Posts in category Windows 7

MSI error code 1638: “Another version of this product is already installed”

When you try to remove an application, you receive the following error: “Another version of this product is already installed” with the error code 1638. This is a problem with minor/major versions of the installed product. When a GUID of a msi package changes (when an msi is generated for example), the product will detect itself […]

Enable or disable Outlook add-ins on a per user basis (as for Citrix)

There are certain scenario’s where you want to enable Outlook add-ins only for specific users. This guide explains how to accomplish this by using the group policy. 1. Open the registry and navigate to: HKCU\Software\Microsoft\Office\Outlook\Addins 2. Find the corresponding key which matches the Outlook add-in you have installed (for example: HKCU\Software\Microsoft\Office\Outlook\Addins\OcOffice.OcForms) 3. Right-click on the […]

How to reset / bypass the administrator password on your Windows 7 / 2008 machine without logging on

Last time I had to rejoin a machine to the domain and apparently some nutjob administrator didn’t use the documented password for the local administrator account. So with no option to log on to the machine locally, I had to follow the steps below. Basically, you replace the executable used for Accessibility options showed in […]

Install print driver .inf file from command line

Sometimes you just want to add a printer driver to your Windows client. For example for USB connected printers so you don’t have to manually select the print driver every time connecting the printer to a new client. The following command line can be used in a batch file to automate the driver installation: rundll32 […]

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