No you cannot use the files in Windows.OLD to restore your Office installation. The installer also sets up uncounted entries in the Windows Registry.

• Microsoft Office 2007 Key Free
• Microsoft Office 2007 Download
• Microsoft Office 2007 Setup With Serial Key Free

So, you have to apply Microsoft Office 2007 product key because of its activation and finish version features. If you are windows XP lover then you may also like Windows XP 2018 Product Key. Computer manufacturers often install a trial version of Microsoft Office. If you are getting a prompt to type in a Product Key when opening a Microsoft Office program, it s likely the trial period is over and you'll need to purchase a license (product key) for Microsoft Office. Microsoft office 365 serial Key: Serial Key is a unique Identification number that has been assigned sequentially to a product. It is otherwise called as Serial Number of Serial Key. But it doesn’t mean the Serial Key consists only numbers but also includes Characters and symbols in-between.

How did you buy Office 2007 in the first place. You may still have a paper record of the key
You may be able to recover your Product key, as long as you did not have a factory installed and ACTIVATED 'OEM' type license

http://www.7tutorials.com/how-recover-your-lost-windows-7-or-windows-8-product-key

You can use any of the following tools to extract the Product Key from you computer. These tools report on many installed programs on your computer, not just Office.

PS: you should keep a copy (printed and/or file copies on external storage devices) of the report(s) generated by these tools so you have all of your product keys / registration numbers available for future re-installs

FYI: I (Rohn) have not tested these tools in Windows 8 (just haven’t had an excuse to make/waste the time), but I don’t expect any problem. The underlying mechanics of Windows 8 are essentially the same as Windows 7 if you ignore the Metro User Interface. Think of metro as “lipstick on a pig”. The pig is not changed by adding a little paint on the surface.

Normally you have several resources to find your Retail Product Key.

oYour original package or purchase confirmation e-mail

oOnline download account

oYou can extract the Product Key from the machine itself

oImage copy backups of system with Office installed

oActivation backup utilities

Microsoft Office 2007 Key Free

From what I’ve read, MS uses a file called TOKENS.DAT to store encrypted product activation keys:

C:ProgramDataMicrosoftOfficeSoftwareProtectionPlatformTokens.DAT

C:WindowsServiceProfilesNetworkServiceAppDataRoamingMicrosoftSoftwareLicensingTokens.data

C:Windows.OldProgramDataMicrosoftOfficeSoftwareProtectionPlatformTokens.DAT (if you did an in-place Windows Upgrade)

After you extract the Product Key, make sure to write it down and keep it in a safe place. Burning a copy of the installation file to a CD would also be a good idea if you don’t have the installation disk.

Microsoft Office 2007 Download

NOTE: OEM (factory install and activated) licenses use a different key than the one reported.Only the factory can use the PK from the original factory activation. You would have been provided with a separate piece of paper with a Product key for reactivation.

http://www.nirsoft.net/utils/product_cd_key_viewer.htmlNirsoft ProduKey V1.45- Office 2003 OK, 2007, 2010, Win Vista)
V1.62 Win 98 to Win 8.Office 2003-2010

ProduKey may be able to extract product key information from a registry file saved externally. This is useful if you’re trying to get the key details from the backup of a now defunct machine. Try the /Regfile option.

Microsoft Office 2007 Setup With Serial Key Free

<snip>

After installing on my system, I ran the program --> AS ADMINISTRATOR <-- and then clicked on File --> Select Source. Once in this menu it may appear a little overwhelming, don't worry it's not that complicated and your not going to break anything else. Select the circle next to 'Load the product keys from external Software Registry hive'. Now from here you may have to browse to a slightly different location depending on where your windows.old folder is located, but you want to basically browse to the following and open this file:

C:Windows.oldWindowsSystem32configRegBackSOFTWARE

After opening this file select ok; you may have to wait a few minutes for it to load the hive and give you your keys, but if they're there you should see them and be able to fresh install your MS Office.

Please note that this did work for my Office 2007, it also gave me my Vista Home & Personal Key, and Internet Explorer... lol! I hope this helps someone else too! And remember backup before you do any upgrading/downgrading/or destruction to you PC.

</snip>

Here are some other tools that extract product keys from the default location. I have not tested any of them to see if you can redirect the location they check

I have tried the first 6 in this list with various degrees of success:

http://www.belarc.com/free_download.html- not only does Belarc extract product keys, it reports on a WHOLE BUNCH of other stuff you want to know. Printing the report, or saving it is probably a good idea.
Win 95-Win8,V8.3b

http://www.magicaljellybean.com/Magical Jelly Bean is free, supports 300+ programs V 2.0.8- Office 2003 OK, 2007 OK, 2010 na, Win Vista Wrong). They also have a paid Recovery Keys, support 4500+ programs
V 2.0.9.8

http://sourceforge.net/projects/keyfinder / - Enchanted Keyfinder Beta Portable- Win (9X, ME, NT/2K/XP, Vista, Win7), MS Office (97, XP, 2003, 2007, 2010), Recover key for 484 other software and counting

http://www.winkeyfinder.com/download.php(Office 2003 , 2007 , 2010 , Win Vista )
V 1.73 final Win 98 to Win 7 (and more?) 32bit, Win XP to Win 7 64bit Office 2000 to 2010 32&64 bit

http://www.technibble.com/license-crawler-find-product-keys-in-the-registry/License CrawlerV1.2 B98 (Office 2003, 2007 , 2010 , Win Vista )
V1.30.359, Win 95 to Win8,

http://www.sterjosoft.com/list/ - SterJo Software Key Finder. Confirmed to work on XP through Win8, Office XP/2002 through 2010
V 1.6 Win XP to Win 8, Office XP to 2013.

Abelssoft MyKeyFinder - http://www.abelssoft.net/mykeyfinder.php - found all Office keys correctly
MyKeyFinder 2013

Product Key Explorer http://download.cnet.com/Product-Key-Explorer/3000-2094_4-10646145.html V3.4.6 Win XP to Win 8, Office 2003 to 2010