winIDEA stores various temporary files in %TEMP%, or if specified, %ISYSTEM_TEMP% directory. Some files are meant to speed up your debugging experience and therefore may remain there even after winIDEA is closed. This means that the after a while, this directory will grow in size and may take too much of your valuable disk space.
Periodically empty the %TEMP% or %ISYSTEM_TEMP% folder.
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