Linux valib OS:
https://help.ubuntu.com/community/RecoveringUbuntuAfterInstallingWindows

Kui lisasite Windowsi masinasse Linuxi ketta siis
määrata Linuxi ketas VirtualBox'i sätetes esimeseks
käivitada Linux ja seejärel käsk:
sudo update-grub

Windows peale seda ei käivitu.
Väljakutse: leida lahendus Windowsi parandamiseks!

Ubuntu versiooni vaatamine:
lsb_release -a
screenfetch (vaja eelnevalt paigaldada)

Windowsi parandamine:
MS Windows recovery console
https://www.lifewire.com/recovery-console-2625991

http://pureinfotech.com/repair-master-boot-record-mbr-windows-10/
http://www.thewindowsclub.com/repair-master-boot-record-mbr-windows
https://www.groovypost.com/howto/fix-windows-10-wont-boot-startup-repair-bootrec/

http://www.thewindowsclub.com/boot-configuration-data-editor-windows
https://www.boyans.net/
http://www.thewindowsclub.com/advanced-visual-bcd-editor-for-windows-7-and-vista
http://www.thewindowsclub.com/dual-boot-repair-tool-bcd

https://support.microsoft.com/en-us/instantanswers/67a35c4f-a19f-14c5-0094-e6e7df4d853a/how-to-open-msconfig-in-windows-10
https://answers.microsoft.com/en-us/windows/wiki/windows_10-update/msconfig-the-system-configuration-tool/273dea8e-4cbe-47e9-8489-f400e879ce17