This is a pack consisting of these tools (Windows 7 PID KEY CHECKER v.1.0.1 - Windows 7 Key Changers - Windows 7 ISO Verifier Tool - Windows 7 Anytime Upgrade CD-Key Generator - The Ultimate PID Checker v1.0.3.31)
1. Windows 7 PID KEY CHECKER v.1.0.1
This will check Windows 7 key, and let you know if it is working or not!
Insert your key in "Product Key", then press "Check". If it is a valid working key, then it will give you the other information about the key. Otherwise, it fails the check, and this means that the key is not valid.

2. Windows 7 Key Changers
WINDOWS 7 KEY CHANGER allows to change WINDOWS 7 Product Key, Owener and Registered Organization. WINDOWS 7 KEY CHANGER finds and decrypts the product key in your computers and displays the information right in the main panel. Also recovers the version, Owner registered name and Organization registered name. WINDOWS 7 KEY CHANGER allows to change all this information, with one click, on ALL your machines. WINDOWS 7 KEY CHANGER is the 1st tool that automatize the key changer on WINDOWS 7.

3. Windows 7 ISO Verifier Tool
The Windows 7 ISO Verifier tool, created by Long Zheng and Sven Groot, verifies the integrity of the Windows 7 ISO by verifying the MD5 hash to ensure that it has not been tampered with.

4. Windows 7 Anytime Upgrade CD-Key Generator
"No disks, no delays and no leaving the house. With Windows Anytime Upgrade, you can upgrade to a more advanced edition of Windows 7, say, from Home Premium to Ultimate in as little as 10 minutes. That way, you get to take advantage of extra features while keeping your current programs, files, and settings intact.

In the past, upgrading Windows could be a bit of a hassle. In Windows 7, the software you need comes preinstalled. You can buy an upgrade key online or from an authorized retail store.

Windows Anytime Upgrade is only available for online purchase in Australia, Belgium, Canada, Germany, France, Italy, Japan, the Netherlands, Spain, Sweden, Switzerland, the United Kingdom, and the United States."

For upgrading for example Windows 7 Home Premium you have to go to:
Start--> in search bar enter anytime --->start anytime prog ---> start cdkey generator--->generate cdkey ---> enter CD-Key ---> GREAT SUCCESS. But, you could also start cdkey generator after upgrading.

5. The Ultimate PID Checker v1.0.3.31
The Universal PID Checker allows you to calculate the Product ID of given product key. Key validity will be checked also. The unique feature is reading keys from file and saving log (beta). Performance of PID generation is checked too - time spent on generating will be printed under the result.

Features:
- Generating PID from typed key/clipboard
* for Windows Vista/Server 2008
* for Windows 7/Server 2008 R2
* for Office 2010
* for all builds >= 6.0.5365.8

- Generating PID from file

- Saving output to log

- Viewing system key

- For more info read the text file ReadMe.txt.