Because of the shortcomings of the Windows Disk Cleanup (cleanmgr) tool, we highly recommend using a specialized hard drive cleanup / privacy protection software such as WinSweeper (Developed by Microsoft Gold Partner) to clean up your entire computer. Running WinSweeper once per day (using automatic scanning) will ensure that your computer is always clean, running fast, and free of 012D3E29B8B6222DBE50F66A76E40151.swf errors related to temporary files.