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This document is a machine-translated draft and is currently undergoing review. Some content may be inaccurate or differ from the original Korean version. For the most precise information, refer to the Korean documentation.

  • Error message: "This file can't be opened."
  • Summary: Player installation failure (Windows 10 Edge) and downloaded video playback failure (Android tablet)

Symptoms​

  • The Kollus Player installation file does not run in the Edge browser on Windows 10.
  • Downloaded videos do not play on an Android tablet.

Cause​

  • Windows 10: The file is corrupted due to accumulated cache errors in the Edge browser.
  • Android tablet: The tablet's operating system is corrupted, or the downloaded file path cannot be recognized due to corrupted Google system files.

Resolution​

Windows 10 (Edge browser)​

Method A: Clear Edge browser cache
  1. Enter edge://settings/clearBrowserData in the Edge address bar to navigate to the clear browsing data page.
  2. Set the time range to [All time], check [Cookies and other site data] and [Cached images and files], then click [Clear now].
  3. Close and restart the browser, then proceed with the Kollus Player installation again.
Method B: Use Chrome browser
  1. Close all running Edge browser windows and open Chrome.
  2. Download and install the latest version of the player.
Method C: Force run from the security warning dialog
  1. When a Windows security popup appears while running the installation file, click [Ignore] or [More info].
  2. Click [Run anyway] to force the installation to proceed.

Android tablet​

Factory reset the device
  1. Back up any important data.
  2. Go to [Settings] > [General] > [Reset] > [Factory data reset].
  3. Once the reset is complete, reconnect to Google Play and install the Kollus Player app.