This is UltimateDefrag Version 5! Hands down, the world's most powerful and speed enhancing defrag software for Windows XP, Vista and Windows 7, Windows 8 and Windows 10.
You will find a full description of UltimateDefrag5 here.
The regular price for one license for use on three PCs is $29.95.
If you will be using UltimateDefrag on more than three PCs, then you will need additional licenses.
When you complete your order you will receive license numbers by e-mail which you will use to unlock or activate UltimateDefrag5.
Simply use each license to activate your UltimateDefrag on each PC you install it onto.
Please also keep a record of your licenses for convenience however you can always login to your account here to retrieve them in your order history if you need to in the future.
UltimateDefrag5 works with all versions of Windows XP, Vista and Windows 7, Windows 8 and Windows 10, 32 bit and 64 bit versions.
UltimateDefrag5 is guaranteed to enable you to extract every millisecond of performance from your Windows PC.