The Ultimate PID Checker Utility that checks if Windows license keys are correct
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The Ultimate PID Checker Description

The Ultimate PID Checker is a compact and portable utility whose purpose is to verify the integrity of Windows serial numbers. You can use this tool if you are planning to reinstall your operating system, for instance, and are unsure of the current product key you have at hand. Since the app does not come with a setup pack, you can simply drop the program files anywhere on the hard disk and run the executable. Otherwise, The Ultimate PID Checker can be moved to a removable storage unit, in order to run it on any workstation without prior installers. What's important to keep in mind is that portable utilities do not add new entries to the Windows Registry, thus they do not increase the risk of system errors. The app is wrapped in a neatly organized interface, where you can insert a serial key for verification via the Clipboard or from a file on the computer (TXT format). Plus, you can identify keys from a particular file. After selecting the OS platform to compare the key with, you can initialize the procedure with the simple click of a button. Results reveals many details concerning the product key, including the profile, product, advanced and edition IDs, description and EULA, along with the benchmark time. Furthermore, you can log these details to file for further scrutiny. The Ultimate PID Checker is light on the system resources, using a pretty small quantity of CPU and memory. It has a good response time and verifies data rapidly and without errors. We have not come across any issues in our tests, as the program did not hang or crash. All in all, The Ultimate PID Checker comes in handy whenever you need to validate a Windows serial number swiftly. Reviewed by Elena Opris, last updated on December 18th, 2013

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