Installation and System Requirements - O&O Software

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Windows Vista/ XP/2003/2008 Windows 2000 System files online+offline online+offline Paging file offline only offline only MFT (NTFS volumes) online+offline offline only Registry online+offline offline only Directories (NTFS volumes) online+offline online+offline Continue Working During Defragmentation O&O Defrag is the only defragmentation software to offer you the O&O ActivityGuard. This tool checks the CPU usage during the defragmentation process. Whenever you require the full performance of your computer, it will lower the strain caused by O&O Defrag to a minimum. O&O Defrag will keep operating unnoticed in the background which enables you to continue working undisturbed during the defragmentation. At times when you’re not using the PC, for example at lunchtime, O&O ActivityGuard notices this and automatically allocates more resources to O&O Defrag. To enable the O&O ActivityGuard Pro, under Defragmentation and Settings/Tuning select the option O&O Autosense or enter a maximum value in percentage terms of what should be put aside for the defragmentation. You can find more information about the O&O ActivityGuard in the Settings section of this manual. User's Guide for O&O Defrag 11 First Steps l 15
O&O Defrag Methods Overview O&O Defrag offers you five different methods of defragmenting your computer: • STEALTH • SPACE • COMPLETE/Access • COMPLETE/Modified • COMPLETE/Name Each of these methods offers you an efficient and quick online defragmentation of your files, i.e., no service or application must be paused or stopped while the defragmentation takes place. STEALTH and SPACE are optimized for the fastest possible defragmentation of your files, whereas the COMPLETE methods provide a more thorough defragmentation which requires more time and free hard disk space. By re-arranging your files to use the available space as efficiently as possible, further fragmentation is avoided. All methods can be used on all drives, including volume sets, stripe sets with and without parity, etc., and are equipped for best possible data security. This is achieved by their working together with the defragmentation routines integrated into Windows, and making sure that data is not lost if your computer or network crashes, or if there is a power cut. Conflicts with Shadow Copies during Defragmentation The operating systems Windows Vista, Windows XP64, Windows Server 2003 und 2008 offer users the ability to create "shadow copies" for protecting their data. This new feature automatically creates copies of files currently in use at regular time intervals. Because Vista only records the changes made to files, normally only minimal memory resources are required. Accidentally deleted files and folders or previous versions of documents can be easily restored using a convenient command accessible through the context menu. Simply right-click the object to be restored and click "Restore Previous Versions". The shadow copy is activated by default when installing Windows Vista. On Windows XP64 and Windows 2003 Server is this functionality deactivated. During defragmentation, files on a volume get moved. Vista perceives this as a deletion and creates a new shadow copy for the moved file. Because defragmentation requires the moving of multiple files, many shadow copies are created, which in turn leads to the higher demand on disk space. This behavior can lead to the deletion of shadow copies for some files. This can also affect the integrity of system restore points. The effects are most noticeable when defragmenting volumes using the COMPLETE-Method. Shadow copies are filed in the folder “System Volume Information” and cannot be defragmented. This can end up having a negative influence on the result of the defragmentation. There is, on the other hand, almost hardly any loss in performance caused by fragmented 16 l O&O Defrag Methods User's Guide for O&O Defrag 11
Page 2 and 3: O&O Defrag 11 Rev. 2008-08-27 ©199
Page 4 and 5: Recommended Application . . . . . .
Page 6 and 7: About O&O Defrag Welcome to O&O Def
Page 8 and 9: The Workstation Edition contains th
Page 10 and 11: In a network, you must be the domai
Page 12 and 13: When updating from a previous versi
Page 14 and 15: Online Registration Using a Trial V
Page 16 and 17: 1. In the Defragmentation tab click
Page 18 and 19: Defragment Single Drives 1. Select
Page 22 and 23: shadow copies. Although these files
Page 24 and 25: Recommended Application The COMPLET
Page 26 and 27: User Interface (GUI) Main View The
Page 28 and 29: Job View In Jobs at the bottom of t
Page 30 and 31: Task Tray Control If desired, an ic
Page 32 and 33: Settings: Offline Defragmentation T
Page 34 and 35: O&O Defrag Screen Saver The O&O Def
Page 36 and 37: Controls: In this section, it is po
Page 38 and 39: Creating A New Job Schedule On the
Page 40 and 41: Drives Select the drives and defrag
Page 42 and 43: O&O ActivityGuard Pro This feature
Page 44 and 45: Please note: All commands must exis
Page 46 and 47: Status Report Deleting Status Repor
Page 48 and 49: COMPMOD:{C[,] | ... | Z | ALL} Star
Page 50 and 51: MFT could not be defragmented Not e
Page 52 and 53: Size of Drive All drive sizes suppo
Page 54 and 55: O&O Defrag and Firewalls When I sta
Page 56 and 57: O&O Support and Contact Technical S

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