Dual Boot Win 10 system. Steam doesn't stay logged in upon reboot

[Hybrid Divide]

I have a PC running two separate installs of Windows 10 on two separate SSDs.  I have Steam logged in on both drives.  Steam isn't remembering my log-in state on switching between OS installs.

 

For example:

If I login to Steam on install 1, then reboot or restart into install 1, it will remember my install.

If I switch to install 2, Steam forgets my login.  Once I login, it remembers upon reboots and restarts into install 2.

Switching back to install 1 forces me to log in again.

 

I should add that I recently reinstalled windows 10 on these two drives, and that when I was running this setup before, Steam never had this login issue.

Also, none of these logins when I switch require mobile code authentication, like it does when I log into Steam on a new device.  So that's something else to consider.

 

I hope this was a decent explanation.  Please let me know if I need to clear anything up.

Mods: Feel free to move this out of gaming, if it fits another category better.

 

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PC Specs:

CPU: Intel Core i7 6700K

RAM: 32GB DDR4

GPU: EVGA Geforce GTX 980

MOBO: Gigabyte GA-Z170X-Gaming 7 (Rev: 1.0) With latest firmware)

Boot SSD: 2x Samsung 500GB SATA (One per Win 10 install)

Storage HDD: Western Digital 3TB HDD

Case: Corsair 650D

OS: Windows 10 Pro

 

 

[Valkyrie Lenneth]

i think steam takes ur hardware id per system into an encryption for one os, if u switch to the other os it tries to read that encrypted hardware id , but the id is different on the os thus it wont remember it

 

i think u can only do 1 autologin on steam per os per system

 

unless u use 2 seperate steam installation folders / installations per os,   installaiton folder 1 for os1, installation 2 for os 2

[Hybrid Divide]

That makes sense, but, again, until this recent reinstall, it worked fine on both systems.

 

Thanks for the reply.