PC Viewer App for Windows wouldn’t start up/shuts down automatically.
See either of the following solution may help you to start/shut down PC Viewer App.
1：Update Windows to the latest version
PC Viewer App for Windows may not operate as usual if you have not updated your PC to the latest version of Windows. To update your PC, head to your PC’s “Control Panel” via menu and select “Windows Update” .
* Windows Update may appear differently depending on your device.
2：Check your software’s security setting
The PC Viewer App may have been detected as an unknown software which may harm your computer. If so, please open your setting and exclude the PC Viewer App from such list.
3：Reinstall PC Viewer App may help your situation
Follow the procedures below:
1) Uninstall the present PC Viewer App
2) Reinstall PC Viewer App
* Our PC Viewer App “BOOK☆WALKER for Windows/Mac” is not compatible with Social Media account sign-in (including Google) . Please link your e-mail address account in order to use the PC Viewer App.
* Please be noted that because we have decided to concentrate on offering and developing the Browser Viewer in the future, we will not be updating the PC Viewer App anymore. We may also stop distribution and usage of the PC Viewer App without prior notice due to OS update and/or security countermeasures. In this case, the Browser Viewer will become the only option to read eBooks on desktop PC, which requires a stable internet connection. Please see details on [Important Notice] Changes to the reading environment on desktop PC (Dec.20, 2017).