I bet this has been answered before, but I also bet it will take me a very long time to find the info if I use Google. Anyway, I just finished setting up Manjaro just how I like today, so I do NOT want to start from scratch again, lol. Yet stupid Windows ups and breaks on me immediately after I installed Manjaro.
So I have a dual boot setup, Windows 10 and Manjaro XFCE (stable 17.0.2). It's a typical setup with two main partitions and one hidden active 500 MB partition that Windows installer created (you know the one). Anyway, something is wrong with Windows and I want a fresh clean install of the latest 1703 build, but I know that will kill Grub and prevent me from booting into Manjaro. I have used this Linux partition for about the last 50 distro hops/installs, lol.
How can I install Windows again in that same partition and immediately get grub back? I think the partitions are as follows.
sda1 (500 MB hidden Active for Window bootloader) Is this where Grub is located on the drive?
sda2 (60GB Windows 10)
sda3 (60GB Manjaro 17)
Grub was placed in sda (not a partition number according to the Manjaro installer). Below is an image from Disk Manager. Thank you!