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".

However, there is a good trick to delete the ppsds.pgf file, that is, set the cache path to the path of IE temporary folder, so that the ppsds.pgf file can be deleted while clearing IE temporary file.

Pppds.pgf is associated with ppsap, the latest accelerator of PPS. If there is ppsap in the process, you cannot delete ppsds.pgf, and you need to close the ppsap process first.

Then enter msconfig to turn off the automatic startup of ppsap, and there will be no1gpppsds.pgf for the next startup.

However, if you reuse pps, you will automatically restart ppsap and ppsds.pgf.