4wd - This is very educational, and I am very thankful you just posted the warning directly above.  I have just taken my first look at these commands - my start at this level.  By the way - what I see has a few more lines than yours -
  custom three times
  nx
  sos
  etc.

Well, this seems a bit dangerous, no?  Maybe I should try your iReboot suggestion.  UNLESS there's a way to do a bat file that simply repeats my steps A) above (not B which just blew up on me).

I have a lot to learn about Win 7 and 8 before I can feel that I'm back at my level with XP - and even there I was just a dangerous noob.  And just now my playing with msconfig has caused TWO BSDODs on shutdown, which I seem to have corrected with a System Restore to this morning (that says it did not take 100% - oh well).

Many thanks!  It took me six (?) years of fussing with XP to feel confident I could repair blow-ups.  Feels like I'm back at the start.  But this IS a start.

 
Wow - this is a very interesting web site. 

Apologies if I'm doing this wrong.  But I was sent here per a suggestion in Windows Seven Forums - see
LINK - How to do shortcut bat files to choose next login OS - dual boot 7 - 8

If you read that link, you'll see I have set up a Dell PC to be dual-boot between Win 7 Pro 64-bit and Win 8 Pro 64-bit.  Many of you here will appreciate that it's very clunky to REBOOT into the desired OS - many steps in each case.  I thought it would be great to have TWO shortcut or bat files (or similar) on each desktop.  One would reboot into Win 7 and the other would reboot into Win 8.  (That's four bat files total, folks, two for the Win 7 desktop and two for the Win 8 desktop.)

Two good reasons for this:  First, would be easy and fast for anyone.  Second, I frequently remote into this home PC from work, and I know I will need to reboot remotely and with confidence from time to time.

Right now, to do this manually, there are two routes I know of, and maybe one of them is good for the bat files I have in mind:

A)  ► Right-click on the desktop icon "Computer" and select Properties - this brings you to System - click Advanced System Settings - Startup and Recovery - Settings - System Startup - Default Operating System - [select which one and short time to display list of operating systems] - OK - manual Restart

B)  ► Run [Windows+R] - msconfig - Boot - [select the OS] - maybe check No GUI boot - Apply* - OK - a Restart prompt comes up and hit Restart
            * But "Apply" is dicey - it's greyed out unless I toggle something on and off.

Well, what do you all think?

One further thought.  I actually have a bat file on my old single-boot XP desktop that restarts the machine securely after a short delay (which lets me close my remote app before the rebooting actually starts).  Its only line is
shutdown -r -f -t 20
It's good because it has the -f force all applications to close and it has the -t 20 which gives me 20 seconds to close my remote app before the reboot starts.  And instead of a bat file, this could be a shortcut that "points" to a very similar line, like
%windir%\system32\shutdown.exe -r -f -t 20
Ideally, your new desktop bat or shortcut files for my more complicated Win 7+Win 8 dual boot PC will have similar features.  But please don't get hung up on those right away - want to see what the reboot into target OS will look like even without those features.

Many thanks !!!