'junk files' is correct and usable in written English.
You can use it to refer to unneeded or useless files on a computer or other device. For example, "I need to spend some time cleaning up my laptop's hard drive by deleting all of the junk files I no longer need."
"You have junk files on your router.
Using CCleaner can avoid backing up and restoring loads of junk files.
– 24 October, Tampa, Florida Bleachbit, software that removes junk files and private information, for instance to recover disk space or to protect privacy, is free.
The company specialises in security software and makes the Clean Master app, one of the top non-gaming downloads from Google's store, which wipes junk files from Android phones.
In the spirit of lean times, Smith has recently been divesting herself of unnecessary junk: files, books, faxes, letters, five Rolodexes ("I need to go through them and throw out all the dead people"), but not, apparently, several ancient-looking spelling-cue Post-its stuck to a wall: "Giuliani," "Zellweger," "McConaughey," "Al-Qaeda".
Clean Master gives mobile device a good spring clean by removing junk files and optimizing memory, which in turn makes it speedier and more efficient.
Combine tokens with the technological alchemy of algorithms, tracking software, filters and databases, and the idea is that a system can be laid over existing phone networks that will be able to sniff out many (but not all) spoofed calls and, like email spam, flag them for recipients or move them to a junk file.
In this case, you would want to specifically target the Snapchat app for junk file deletion.
It enables you to not only clean junk file and temp data from drives, but also remove the thumbnail cache.
Throw out last year's junk, file away important information where it belongs and give everything a good dust or wipe down.
You can unsubscribe from junk mail, file mail in virtual folders to look up later and form to-do lists for responding to time-sensitive mail.
