Stop disc drive from being checked at boot?

Since SP2 (seemingly), my Vista install takes its sweet time booting, which I'm thinking is the disc drive being scanned, and although it did that before, I can hear it boot up to full speed twice, oddly..
Soo is there a reg tweak to stop the drive being scanned at boot so I can confirm this?

 

Your Optical disk? (Change boot order in BIOS) Hard Drive? (Turn off indexing). Them's my suggestions.

 

Nooo not booting from the disc, while Windows is loading, the disc drive powers up.

 

That should make almost no difference in bootup speed. If anything, it's like a quarter of a second. You can disable this if you wish, however, by moving the primary hard drive to the first item in the boot order. This is set in the BIOS (accessible by pressing F1, F12, etc. depending on what computer you have).

 

NOOOOOOO

I am in no way talking about BOOTING from the disc drive.
Where it starts to spin: Bios screen; OS Boot selection; black screen; cursor on black screen; NOW the disc drive starts to power up, and it does so twice. Then the Welcome screen comes up.
Since the disc drive causes windows to hang when it shows up in a menu or something, I presume it causing a little hangup during windows' loading as well.

I see now my title isn't clear, but I don't see how in reading further it could now be misinterpreted (unless someone doesn't read >this<)

 

To be fair, your posts weren't really clear. But, I don't think the optical drive is causing the "hang." It's normal for booting to seemingly "pause" for a bit between the appearance of the cursor and the change from the black screen to the Welcome dialog.

One way to test, though, if you really wanted to, is to entirely disable the ODD in BIOS (or physically remove it) and use a PC boot timer to measure the total boot time. Then, re-enable the ODD and test the boot time again. I doubt there would be a significant difference in the two, but you can always try!

 

Alright, posts weren't clear.
Not sure why I didn't think of disabling in BIOS. To be fair, I don't think of a lot of things :S
SOo, I tried it. Helped a little.. Not really the gain I was hoping for. Except for AV and drivers, there's only 2 things that startup w/ windows. Perhaps I should invest in some patience.
Thanks Sun!

 

All I can offer is that I had an issue with my optical drive when I tried canceling burning files. It caused my disc drive to take 10-20 seconds to activate when waking from sleep or during boot. Which caused the BIOS screen to hang during boot or Windows to hang during waking from sleep. Eventually I reinstalled my OS for some other reasons and the hanging issue dissapeared, however, my optical drive would only be visiable when restarting or booting, if I woke from sleep, the optical drive wouldn't function or be visible (as if there was none). Well, I've been dealing with this for over a year. Just recently, I updated the firmware for my optical drive by downloading the latest version from Dell's site. Now my optical drive works like brand new. No hanging, activates immediately, always visible to the OS.

So, summing it all up, flash the firmware. Even if you have the latest version, trying flashing to the same version or an older version (then back to the most recent). See how that works.