Category Archives: Guides

[GUIDE] (Windows) Fix Fluctuating Screen Brightness

 The Problem

  • The laptop’s display’s brightness and contrast seems to be spontaneously adjusted as the content changes. It keeps getting darker and then brighter.
  • The laptop’s screen flickers when set to low brightness.
  • The above happens even when Adaptive Brightness is disabled in Control Panel/Power Options.

The Explanation

This is caused by a power-saving feature of Intel Graphics. This may apply to hybrid graphics systems as well. If your computer does not have an Intel GPU, you must have some other problem.

The Solution:

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[Guide] Solve 0x80070057 Error When Installing Windows

The Problem:

The Windows Installer displays a 0x80070057 error code with a “Failed to prepare or format the partition during Windows installation” message when trying to install a clean copy of Windows.

The Explanation:

The filesystem, hard drive or hard drive connector may be corrupt. This can be caused by software or hardware problems.


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[Guide] Fix Mail, Calendar, People in Windows 10 TP Build 10049

1. Run Windows PowerShell as Administrator.

2. Run the following command in PowerShell:

Get-appxprovisionedpackage –online | where-object {$_.packagename –like “*windowscommunicationsapps*”} | remove-appxprovisionedpackage –online

3. Install Mail, Calendar, and People from the green (non-beta) Store.

Thanks to for the information.