Why there is "Low Disk Space" warning?

[DannielHS]

- Windows created the low disk space warning to alert computer users when their hard drive is running low on available disk space. Then you will see on a fairly regular basis as your hard drive fills up is the Low Disk Space warning in SBS Server: "You are running out of disk space on Local Disk [drive]. To free space on this drive by deleting old or unnecessary files, click here."
- Sometimes, you may just need to ignore or disable your Windows low disk space in SBS Server. But it is not so simple when the problem is on the C: drive. In order for your computer system to operate properly it needs a minimum amount of available disk space on the system drive.
- The 200 MB threshold is the line that Windows has drawn for optimal performance. Once you fall below this threshold your system automatically takes actions to maintain minimum performance capabilities.
- When your available disk space falls under 80 MB, Windows SBS Server delivers a stronger warning message, and then it starts to free up drive space by deleting previous System Restore points. This reduces the number of restore points you can select to restore your computer if the hard drive is impaired or corrupted.
- The final phase of self preservation comes when your drive falls under 50 MB of available disk space. When this occurs an urgent warning message is delivered every four minutes, until the user takes actions to free up disk space. If you ignore this warning, then Windows will purge the ALL System Restore points, and suspend the System Restore function. System Restore will not be reactivated until 200MB of disk space becomes available on the system drive.