Why does my computer download CD-ROM Li always have a ppsds.pgf?

The reason why the hard disk partition has a 1G ppsds.pgf file is because you use the latest version of PPStream's on-demand function. Ppsds.pgf is mainly used for on-demand buffering, which makes the buffering time shorter and opens the on-demand video faster. If you install the latest version of PPStream without using the on-demand function, ppsds.pgf will not appear. But as long as you use the on-demand function of PPStream for the first time, PPStream will "randomly" generate the hidden file ppsds.pgf in the root directory of the hard disk, with the size of1g. Hard disk space is not large enough, please pay attention. Personally, I feel that PPStream should tell you this, because if you don't pay attention, you can't find this file at all. You must choose not to hide the system file properties to see the file. Moreover, watching the PPStream on-demand function after deletion will rebuild this file, and Windows garbage cleaning can't be cleaned automatically, which feels a bit "rogue".