First, in the past, my set up;
I have Linux on one HD. Windows on another drive. I installed each one separate. Windows on a drive by itself. Took out the drive, put in another one, installed Linux. I then put in both HD's.

I installed Grub-customizer, that way I can boot to whatever OS I want, without changing the Windows drive. If I take out the Linux HD, I can boot up Windows without problems.

I just installed Mint KDE. I am wondering if I can set grub to a timeout lengh without having to install grub-customizer? Computer just boots into Linux.

Does Linux Mint KDE have grub? How do I get to it to make adjustments? I can't find it anywhere.

Thank you,
Chris.

Mint has grub by default - if you installed with the Win disk removed, the (Mint) installer sets grub to boot immediately into the only system it knows about. This can of course be changed - there are innumerable grub(2) guides out on the web. Ubuntu used to be best explained, but I'm sure there will be a truckload on the Mint tutorials as well.

Have a look in /etc/defaults/grub. There are several parameters that probably need to be adjusted in your case, and the usage has changed over time.
OK - quick google found this - seems comprehensive enough.

Thank you,

All I had to do is run sudo apt-get update grub. Didn't have to edit anything. I forgot the update. You had to remember to save your choice in grub-customizer also.

Thank you,
Chris.

Could have been worse - the next code update to grub would run update-grub for you. So it would have fixed itself without you ever knowing why ....