Bootable DVD (Not what you would think)

Here's how to get a perfect clean reinstall of factory OEM:
Reinstalling Windows 7

You can also clean up the bloatware as best you can to see if the performance is good enough to keep, then save a Win7 backup image which can be used instead of reinstalling Win7.
Clean up factory bloatware
Backup Complete Computer - Create an Image Backup

If you don't locate an installer, you'll need the REpair CD in case WIn7 ever becomes unbootable, or to boot to reimage the HD or its replacement:
System Repair Disc - Create
System Image Recovery

Make your Recovery DIsks as a backup in case you need to run Factory Recovery, although it's most stable to run it first from it's partition:
HP Backup and Recovery Manager

Doesn't your newer pc come with a Recovery Partition. Usually right after system power on if you mash F11 or Alt F11 or some key combination it will bring up the recovery program.

It boots and installs right from this hidden partition and it is pretty fast. It may install some bloatware and such and may give you trial software, but you will get your system back.

If this partition is corrupt or non-existent then you can "buy" a recovery dvd from hp. They don't charge for the disks, but the "shipping" is usually about 20-30 bucks. But, it is cheaper than buying windows.

If you do buy windows buy oem with a small pc part and install drivers from the hp website.

Good Luck

There is no reason to buy WIndows 7 as you own a license which came with your PC. In addition to built-in Factory Recovery, you are entitled to clean reinstall the licensed version using the Product Key on the COA sticker as often as you like for the life of the PC.

This can be done with any retail installer, by unlocking all versions if necessary to burn to DVD or write to flash stick. Unlock any version eicfg removal tool
Again, the whole process is described here: Reinstalling Windows 7

The WIn7 installer is driver-complete, with newer arriving quickly via optional Windows Updates when you enable hardware auto-updating: Automatically get recommended drivers and updates for your hardware.

Any drivers missing in Device Manager can then be imported from the Support Downloads webpage for your model computer or device.

I would not change out drivers given by the installer and optional Updates unless performance problems point to one as problematic. This is not XP, Win7 is the authority on its own drivers. We often have to advise users to reinstall when they've changed out all their drivers from the ones given by the installer/optional Updates.

I think the OP knows how to use the recov partition.

He wants a dvd to reinstall from .

He could use any install dvd he can get hold of - using Greg's instructions.

If he is interested - he can also make one from the files on the recov partition - will have drivers and activation for his machine included.

Easier to run off a set of recov discs using the HP utility already installed on his machine - but that will have all the HP bloat in it as well.

How to make HP Recovery DVD disks:
Recover Windows Vista Operating System Using HP Recovery - HP Customer Care (United States - English)

How to make HP Recovery USB disk:
Creating a Recovery Disk on a USB Flash Disk HP Pavilion dv6700z CTO Entertainment Notebook PC - HP Customer Care (United States - English)

or
You can Order HP Recovery Disks from here:
Compaq Mini CQ10-500 PC series - HP Notebook PCs - Order Recovery Discs for Windows 7, Vista, or XP - c00810334 - HP Business Support Center