For some this problem is answered by: [Windows option just reloads grub bootloader after updating to Ubuntu 19.10](https://askubuntu.com/questions/1183528/windows-option-just-reloads-grub-bootloader-after-updating-to-ubuntu-19-10/1183623#1183623).
Before following steps in answer use `boot-repair` to get diagnosis to ensure same problem.
For some this problem is answered by: [Windows option just reloads grub bootloader after updating to Ubuntu 19.10](https:/ /askubuntu. com/questions/ 1183528/ windows- option- just-reloads- grub-bootloader -after- updating- to-ubuntu- 19-10/1183623# 1183623).
Before following steps in answer use `boot-repair` to get diagnosis to ensure same problem.