Virtualbox: VT-X is not available

In some cases when you try to get a virtual machine running with Virtualbox or similar virtualization software you will get an error stating that 'VT-X is not available'. This relates to BIOS settings which, depending on your processor, determine whether your computer is able to virtualize stuff. These settings are not set automatically however, ... Read more

Resolve Java issues in Opera

From time to time you may experience problems with the execution of the Java plugin in the Opera browser. This happens because its path is not correctly configured in the options. To resolve the issue, open an Opera browser window and enter opera:config#UserPrefs|PluginPath into the URL bar. There should already be one path in the Plugin ... Read more

Remove Driver Filters to Resolve Device Manager Errors on Windows 7

Sometimes the situation might come up where a device that was working flawlessly before will stop doing so, even if you try everything - replugging it, reinstalling its drivers, rebooting the computer - but nothing will help. A possible cause for this is a driver filter that was either installed by any third party software ... Read more

Defragment Boot Files on Windows 7

Apart from the usual file defragmentation on Windows 7, there is another undocumented function that rearranges boot files to grant faster access on them, resulting in shorter boot times. The usual boot options can be viewed by entering defrag -? into a command line window (this can be done in any command line window; to ... Read more

Windows Automated Installation Kit Error: 0xc1420117 on dism Command

Error: 0xc1420117 The directory could not be completely unmounted. This is usually due to applications that still have files opened within the mount directory. Close these files and unmount again to complete the unmount process. This error happens when you use another Dism.exe which is located in C:\Windows\System32. The correct application to use is C:\Program ... Read more