What does 'system cleaning' mean?

The computer system uses the hard drive to store various files while doing various tasks. Typically, these files have no impact on how the system operates. By taking up space, it rather slows down the system's speed. The method for preventing speed loss in the system is system cleaning. The following files are relevant to system cleaning:

• Downloaded Program Files

• Temporary Internet Files

• Offline Webpage

• Recycle Bin

• Setup Log Files

• Temporary Files

• Thumbnails

• Per user archived Windows Error Report