Drives can be configured in many different formats. Most modern drives are configured in a format called NTFS, but some drives use a much older format called FAT32. Although the YBackUp Desktop Software can be configured to store its cache on a FAT32 drive, it is recommended that you use an NTFS-formatted drive instead if possible. This is because the YBackUp Desktop Software stores information about your files in a folder on your chosen cache drive, and FAT32 is limited to 15,000 files per folder. This means that if you put a lot of files on your Briefcase, or backup a large number of files with Backup, then the YBackUp Desktop Software will stop syncing correctly.

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