28. July 2018

Unable to shut down Windows on computer with Linux dual boot

After installing Linux in dual boot on the computer with Windows you may experience a strange problem. It’s no longer possible to shut down the computer from Windows. The computer immediately re-spawns to the Windows login screen.

The issue is most likely caused by booting Windows from the incorrect bootloader. If you have two partitions (sda1, sda2) on the system, make sure that you’re booting Windows from the one with the operating system.

Booting from incorrect partition could cause other strange errors, like problems with updating Windows. You can read more in the article: Failed to install Feature update of Windows 10, version 1803 on machine with Linux dual boot.

28. July 2018

Failed to install Feature update of Windows 10, version 1803 on machine with Linux dual boot

I was chasing a very strange bug for a long time: Windows 10 was not able to install any feature update.

Update history in Windows contained just a message:

Feature update to Windows 10, version 1803
Failed to install on ‎2018-‎05-‎24 - 0xc1900101

To keep the long story short: I was starting Windows by the incorrect bootloader.

Grub from Linux Mint auto-discovered two Windows partitions /dev/sda1 and /dev/sda2. The first partition was just a small partition with bootloader from the previous installation of Windows. When booted by “chainloader +1” the boot automatically kicked in and started Windows stored on the second partition. Unfortunately it had an impact on updates and shutdown of the computer.

The correction was quite simple. Just start Windows from the second partition.

I rebooted the computer from sda2 partition and then I started the new installation of Windows 10, version 1803 update using Windows 10 Upgrade tool.

This correction also fixed another strange bug, that I was not able to shutdown Windows. When I selected “shutdown”, Windows respawned in a few seconds back into login screen. Again the problem was that old bootloader from the first partition kicked in, after the shutdown of Windows and resumed it.

Big thanks to Max Green for pointing out that the problem might be caused by invoking incorrect bootloader.

4. February 2018

How to find out version of Windows

Different version of Windows contains different features. E.g. switching UI to grayscale is available in Windows 10 in version 1709.

If you want to find out version of Windows, press Windows key and type command winver.

Press enter and following window should be displayed:

20. January 2018

How to switch tabs in MobaXterm

MobaXterm is a versatile terminal manager for Windows. Many Windows users are using Putty to connect to SSH on a remote machine or Git Bash when they want to use Git on Windows. MobaXterm can effectively replace these tools with more convenient experience.

One neat feature of many terminal applications on Linux is support for tabs (e.g. in Konsole). The question is how you can switch between tabs in MobaXterm just by using a keyboard.

The Default configuration of keyboard shortcuts is stored under menu Settings and option Keyboard shortcuts.

By default you can use:

Previous tab - Ctrl + Alt + LEFT
Next tab - Ctrl + Alt + RIGHT

I recommend chinging the configuration to match default keyboard shortcuts of Firefox or Google Chrome.

Previous tab - Ctrl + Page_UP
Next tab - Ctrl + Page_DOWN

Enjoy tabs. 🙂

13. January 2018

How to change Windows 10 to grayscale mode and back to color mode

Windows 10 (Fall Creators Update 2017 – winver: 1709) has one neat feature which might be handy for graphic designers and photographers. You can quickly can turn your display quickly to grayscale (black and white).

Some people activates this feature just by accident and they do not know how to turn Windows 10 back to color mode.

The keyboard shortcut is pretty simple:

Windows + CTRL + C

Color mode of Windows 10:

Grayscale (black and white) mode of Windows 10:

You can read more at Microsoft web site.