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→Using Computer Management to Enable and Configure Volume Shadow Copies
In the ''Located on this volume'' specify the volume on which the shadow copies are to be stored. This can be either the current volume or a different volume on the system. The ''Details'' button displays free and total disk space information for the currently specified volume. Once a sutiable volume for the shadow copies has been selected the maximum size to be made available for the shadow copies may be defined. This can either be set to ''Maximum size'' which will use all available space on the specified volume, or capped to a specific size (keeping in mind that a minimum of 300MB is required for the shadow storage volume). Shadow Copy uses a differential approach to backing up files in that only files that have changed since the last snapshot are copied. For certain files, Shadow Copy also only copies the part of the file that has changed, rather than the entire file. As such, it is not necessary to reserve 64 times the size of the volume to be copied since only parts of the volume will be copied with each snapshot.
Schedule the shadow copy snapshots by clicking on the ''Schedule...'' button. By default, Windows configures two snapshots each day (at 7:00am and 12:00pm respectively). To remove a currently defined snapshots select it from the drop down list and click on ''Delete''. To modify a run, select it from the drop down list, modify the settings in the lower section of the dialog and click on ''OK''.