Support for Okoker Disk Cleaner is available from the publisher site.
Short description: Okoker Disk Cleaner is an application that deletes junk files,temporary files,and frees up your hard disk space. It has tools to scan your drive(s) and find all superfluous files for you. If you haven't performed a cleaning on your computer....
To speed up your downloads we recommend you use a download manager such as 
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NoClone - Find and Delete TRUE duplicate files by byte-to-byte comparison. Smart Marker helps to clean up hard drive.