# How does a computer calculate used space?

**URL:** <https://boards.straightdope.com/t/how-does-a-computer-calculate-used-space/138289>\
**Category:** Factual Questions\
**Created:** [November 23, 2002, 2:16am UTC](https://boards.straightdope.com/t/how-does-a-computer-calculate-used-space/138289 "2002-11-23T02:16:01Z")\
**Posts on this page:** 1\
**Page:** 2

<div class="post-metadata">

**Author:** ![GTPhD1996](https://avatars.discourse-cdn.com/v4/letter/g/97f17d/32.png) [@GTPhD1996](https://boards.straightdope.com/u/GTPhD1996)\
**Post date:** [November 24, 2002, 6:09pm UTC](https://boards.straightdope.com/t/how-does-a-computer-calculate-used-space/138289/21 "2002-11-24T18:09:47Z")

</div>

After I cleared the hard disk space, I re-enabled the system restore. I forgot to mention that.

GTPhD1996

[Previous page](https://boards.straightdope.com/t/how-does-a-computer-calculate-used-space/138289.md?page=1)