Q: Does anyone know where I can find a disk utility for an older MacBook? It seems that Apple doesn't support MacBooks from 2007 anymore.

If you were able to call Apple Support (applecare or apple sales support?) and ask if they

can find out if you still can buy replacement system install restore DVD for your MacBook

they could tell you if that is possible if they have your serial number, to look further into it.

• How to identify MacBook models - Apple Support

• Find the serial number of your Apple product - Apple Support

Depending on where you are located, some Apple support or Apple Care facilities may not

be able to comply with a request for vintage and obsolete software replacement media.

Some models introduced in 2007 started out with Tiger 10.4 (with Intel-based OS version)

and went as far as Lion 10.7.5 as their highest upgrade system. All systems prior to 10.7

usually included an install restore DVD media kit, of grey-label discs specific to that Mac.

If you bought the computer in 2007, it may have been a build year model from 2006, so to

be able to identify the computer model exactly, is a key to discovery of a replacement boot

DVD that can also be used to prepare the computer for a replacement hard drive, etc. The

disk utility on the install-restore DVD is an important tool; so is the installer & software disc.

A retail disc (where applicable) of the system on the computer, if one that shipped on DVD

would have a bootable version of Disk Utility in the Installer. The original grey-label DVD

media may be found in the resale, as used or old-stock, originally issued with a Mac, new.

Places online such as Amazon may be able to supply the specific software kit if you knew

exactly the part numbers your computer had when new on those original discs.

Mac Serial Number information - Lookup your Apple Serial Number:

https://www.powerbookmedic.com/identify-mac-serial.php

If you identify by serial number before you contact resellers of Apple computer software online

you may be able to narrow the field. Also, if identify the computer exactly, there may be some

DVD media from that era (retail new or used; or exact original grey-label replacement, used.)

And lastly, if the computer is running Snow Leopard 10.6.8 and it is older than the date of that

OS X system, you could buy a retail Snow Leopard 10.6.3 DVD from Apple Store online, to get

http://www.apple.com/shop/product/MC573Z/A/mac-os-x-106-snow-leopard

the installer that has a disk utility as part of the package. You boot from the DVD to use those

utilities include in the installer; this can also erase everything. If the computer shipped with the

last supported OS X 10.7 installed, that likely had a special USB key to install-restore, not a DVD.

Later computers have their built-in OS X Recovery, a partition on the hard drive that has OS X

Utilities and a means to go online to recover system software and restore without media discs.

• U.S. iPod, Mac and iPad technical support: (800) APL–CARE (800–275–2273)
• Make an appointment at an Apple Retail Store Genius Bar
• Find an Apple Authorized Service Provider
• See all worldwide support telephone numbers
• http://www.apple.com/choose-your-country/

Nothing is as simple as it seems; the first thing is to correctly identify the computer; if you call

Apple (depending on where you are globally) the results may vary; their sales support or apple

care person may be able to help or tell you that they cannot, on the basis of the serial number.

In any event...

Good luck & happy computing!

The reason for all the posting about disc sources is Disk Utility is part of the system software package and isn't a separate or stand-alone download.  It may also help if you tell us why you need Disk Utility.