Windows 10, version 1903 will be distributed from Microsoft on 21 May 2019. It is an important update for Window Update to deliver a new set of features and improvements. It may take time to download and update comparing a regular update. 

For more details on new functions related to Windows 10, version 1903 please refer to the following Microsoft website.

Windows 10, version 1903: New Features
Learn more about Windows 10, version 1903 from Microsoft

Notes before and after updating

Common to All Models

If you run "Reset your PC", you can't restore to Windows 10 previous version. 

If you want to restore to previous image, you should create a recovery drive before you update to Windows 10 1903. To learn more how to create recovery drive, please visit Microsoft's website https://support.microsoft.com/en-us/help/4026852/windows-create-a-recovery-drive

Before updating to Windows 10 version 1903, please update the latest wireless driver and Bluetooth driver (if installed) 

Please download the latest "Intel(R) Wireless LAN Driver & Bluetooth Driver " for Windows 10 from the Fujitsu driver download website.

In case of LIFEBOOK P728,U728,U748,U758,U729,U749,U759,U729X,U939X,CELSIUS H780

[Function Key Lock Utility for LIFEBOOK, CELSIUS ] 

End user may encounter the Function Key Lock Utility will not be working properly after update to windows 1903 version . 

• It may not be reflected on the setting screen of Function Key Lock Utility when you press Function key lock utility to turn it on or off for LIFEBOOK, CELSIUS. 

• The Function Key Lock Utility lock screen is not reflected in the actual setting after sign in . 

-Windows 10, version 1903 has some changes in UWP app process and this made Function Key Lock Utility for LIFEBOOK, CELSIUS not working properly. 

Here are some things to know about the update: 

After updated to Windows 10 version 1903, please update Function Key Lock Utility UWP from Microsoft Store. 

[Microsoft Store] https://www.microsoft.com/store/apps/9n7r968nbmv4 

[Microsoft Store for Business] https://businessstore.microsoft.com/store/details/FCCL/9n7r968nbmv4 

[Microsoft Store for Education] https://educationstore.microsoft.com/store/details/FCCL/9n7r968nbmv4

In case of LIFEBOOK P727,P728,U729X,T937,T938

[Battery Change Utility] 

* For LIFEBOOK P727 , P728 ,U729X , Hibernate feature might not working properly during main battery hot swap . 

* For LIFEBOOK T937 , T938 , The computer hibernate feature is not working properly during main battery hot swap. 

- This problem occurs only when the UWP app of Battery Change Utility is installed. The desktop app of Battery Change Utility does not have this problem. 

Here are some things to know about the update: 

After updated to Windows 10 version 1903, please update Battery Change Utility UWP from Microsoft Store. 

[Microsoft Store] https://www.microsoft.com/store/apps/9nnzb7rrlgbg 

[Microsoft Store for Business] https://businessstore.microsoft.com/store/details/FCCL/9nnzb7rrlgbg 

[Microsoft Store for Education] https://educationstore.microsoft.com/store/details/FCCL/9nnzb7rrlgbg

In case of LIFEBOOK U939X,STYLISTIC Q509,Q739

[LIFEBOOK Application Panel Shortcut button ] 

* For LIFEBOOK U939X & STYLISTIC Q509 , Q739 

- An application might not be started when a shortcut button is pressed. 

-Windows 10, version 1903 has some changes in UWP app process and this made LIFEBOOK Application Panel 

- Shortcut button is not working properly. 

Here are some things to know about the update: 

After updated to Windows 10 version 1903, please update LIFEBOOK Application Panel - Shortcut button UWP from Microsoft Store. 

[Microsoft Store] https://www.microsoft.com/store/apps/9P4G3N6126CC 

[Microsoft Store for Business] https://businessstore.microsoft.com/store/details/FCCL/9P4G3N6126CC 

[Microsoft Store for Education] https://educationstore.microsoft.com/store/details/FCCL/9P4G3N6126CC

Installation of Windows 10 Version 1903

Here are some things to know about the Limitation

*Settings app may be closed unexpectedly if Apps on Settings app is clicked just after starting the Windows. 

- Please wait for a few mitutes and try again. 

* Application update error (0x803FB005) may occur when updating Universal Windows App in Microsoft Store. 

- Microsoft is now investigating this issue. We will update this information accordingly. 

* When PC is connected to networks which does not have internet access, network status icon on task tray is same as 

that with internet connection. 

- Please check the network status from flyout menu which is pulled out when right click network icon. 

*Brightness and color settings in settings app does not reflex the actual status. These values will not be updated when power source switch between AC and Battery. 

*Device connection notifications such as removable storage device are not cleared from action center after removed those drives from the PC. Please clear those notifications with Clear all notifications button in action center. 

*"Sound" option can not be found when right-click speakers icon on Task tray. 

- Please open Sound settings menu in following steps: 

1. Click [Start] -> [Windows System] -> [Control Panel] 

2. Click [Hardware and Sound] -> [Change system sounds] 

Hardware based bitlocker encryption is disabled by default group policy. Please enable the following setting from group policy. 

[Computer Configuration]-[Administrative Templates]-[Windows Components]

-[BitLocker Drive Encryption] 

-[Operating System Drives] -[Configure use of hardware-based encryption for operating system drives] 

Previous default: 

If the policy is not enabled, Hardware based encryption is enabled as default. 

New default: 

If the policy is not enabled, Software based encryption is enabled as default.