On our website, you can get a free download of Okoker Disk Cleaner 4.4. The built-in antivirus system shows that this program is safe. Please note that the software is created by Okoker Software. Many users point out that the weak point of this tool is: this tool is not free. Notice that it is compatible with the following OSs: Windows XP/7/8 32-bit. These installation files are often used to install the software: DiskCleaner.exe and Okoker Disk Cleaner.exe. The most popular versions of this software are 4.4, 4.0 and 1.9.