Configure the option "Number of backup files per document" (Tools > Options)

Here you can configure how many backup files Presentations creates per document.

Supported on: At least Windows Vista
BackupFilesNumber

Registry HiveHKEY_LOCAL_MACHINE or HKEY_CURRENT_USER
Registry PathSOFTWARE\Policies\SoftMaker\Presentations 2016
Value NameBackupFilesNumber
Value TypeREG_DWORD
Default Value9
Min Value1
Max Value99

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