Ultimate System OptimizerUSB versionComes with 2 Easy to use, 1-click ProgramsWorks with Windows XP, Vista, 7, 8, 8.1,10 32bit & 64bitKeep your computer healthy and happy!Make your PC run smoothly & effectively, by cleaning it from junk files & temporary items - and tune up your digital privacyIncludes registry cleaner, registry optimizer, disk defragmentation software, privacy cleaner, background service optimizerEasy to useOne-click solutionFast and Simple System Requirements Microsoft WindowsWindows XP, Windows Vista, Windows 7, Windows 8, Windows 8.1, Windows 10 F.A.Q Is this a trial version or full software?This is a full version of the software. We use open-source software to provide a more affordable alternative to expensive software on the market. We charge for our work to professionally make and package the USB for your usage. And if you have any questions, please feel free to contact us and we will try our best to assist you. Does the software violate any copyrights?No. I am authorized to distribute this software under the GNU LGPL. This listing does not violate the Digital Delivered Goods Policy as it ONLY offers a USB version. Can I install on more than one computer? Yes. You may install on unlimited PCs within your household and use this software without restrictions. Do you supply printed manual?No. All user manuals are in digital form. Is this Legal software? Yes! This is 100% legal software! All software under GNU LicenseWe are Authorized Distributors Under GNU GPL (General Public License) Does this software have to be activated? No activation is required ! Payment We accept all major credit cards and paypal ShippingNo shipment to Alaska/Hawaii, US Protectorates, APO/FPO, PO Box and International.You will receive a CD with a CD sleeve. Majority of our shipment are via FedEx with tracking number