Lost operating system

[AntonRahbek]

I need help to install an operating system on my old desktop. It didn't run Windows 10 very good so I tried to degrade it back to Windows 7. Apparently it failed, and had also somehow deleted the Windows 10 operating system. So now I'm left with no installation disc (I lost it), and no operating system. Where can I get the OS, and how? Also, how can I boot the installation from CD or flash-drive? Tell me if you need serial number, product key etc.

Thanks in advance

-Anton

[AntonRahbek]

Compaq CPT-006-P

VS238AA#UUW

I don't know if it's 32 or 64-bit

[WAWood]

@AntonRahbek

Hello;

Allow me to welcome you to the HP forums!

The Win10 Upgrade is know to corrupt the Recovery partition stored there by the OEM that built the original machine. This pretty much guarantees that no HP Recovery is going to work: http://h30434.www3.hp.com/t5/Desktop-Video-Display-and-Touch/HP-Recovery-Manager-Blocked-After-Windo...

This means that RESET no longer works on your laptop due to your doing the Win10 Upgrade.

Ordinarily, I would recommend using HP Recovery Media to restore your PC to its original condition. That would erase the entire drive, format the drive, and install the OS, the drivers, and the HP utilities.

Unfortunately, there is no HP Recovery Media linked to the HP Product Page for your PC. This could be an oversight by HP, or it could also mean that HP no longer stocks the recovery media for your PC. They no long stock recovery media for the older PCs.

You can try contacting HP Customer Support directly, using the links below, to see if you can order if from them:

If you live in the US or Canada, contact information is on this page: http://www8.hp.com/us/en/contact-hp/phone-assist.html#section1

If you live elsewhere, contact information is on this page: http://www8.hp.com/us/en/contact-hp/ww-contact-us.html

NOTE: After you get through, stay on the line until you are finally able to talk to some one -- it can take a while!

If you have trouble finding a phone number, then try: 1 (800) 474-6836

---------------------------------------
However, HP Customer Support is generally not available on the weekends, so you might have to wait until Monday to contact them.
---------------------------------------

If HP no longer provides Recovery Media for your model, a couple of other sites you should check are: http://www.computersurgeons.com/ and http://www.restoredisks.com/

Before using the media, read through this: http://support.hp.com/us-en/document/c00006110

Good Luck