Measures to clean up hard disk

Windows tends to fill the hard disk with various things over time. Those are some recommendation to get disk space back.

Specific directories:

  • C:\System Volume Information: the directory contains disk snapshots done by the Volume Shadow Copy. By default it uses up to 10 % of the disk space.

    Check the currently maximum storage space via command line as admin:

    C:\> vssadmin list shadowstorage
    

    and see the Maximum Shadow Copy Storage space value on the respective volume.

    To reduce the size (here, set to 10 GB for C:\), execute:

    C:\> vssadmin resize shadowstorage /on=c: /for=c: /maxsize=10GB
    

    This will prevent the directory from saving more than 10 GB of shadow copies.