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  "path": "/forum/macos-mac-apps/how-decrease-size-system-data-m1-macbook-air",
  "publishedAt": "2026-02-15T15:14:00.000Z",
  "site": "https://applevis.com",
  "textContent": "Hello,\nI'm currently using the base model Macbook Air M1 with 8GB ram and 256GB storage. I'm running the latest OS version of Tahoe. In the past few weeks I've started getting low storage warnings and couldn't figure out why because I don't store a lot of files on my computer. I discovered that my System Data is over 110GB according to the Storage section under general in System Settings and I'm not sure what that is or how it became so large. I did some research and it seems that OnyX is a good canddate to help get rid of some of those files in System Data. I already use C Cleaner but it doesn't seem to touch that area at all. Has anyone used OnyX and could point me towards some good tutorials or instructions on how to use it? I'm by no means a tech guru but I can follow directions very well. If anyone has any other recommendations I'm open to suggestions on how to get space back on my hard drive.\n\nThanks for any help you can give me, I really appreciate it.\n\nShannon",
  "title": "How to decrease the Size of System Data on M1 Macbook Air?"
}