Results logging of the defragmentation
O&O Defrag logs the start and stop times of defragmentation runs as well as any errors encountered. These are recorded according to the systems’ own settings for application logging.
How to start the event viewer when running Windows:
- To open the Event Viewer, please go to the Control Panel of your computer and select Administrative Tools/Event Viewer.
Notifications of boot time defragmentation
The chart below contains a list of all notifications possible during boot time defragmentation and their corresponding explanations.
| Output | Type | Explanation |
|---|---|---|
| Drive could not be opened | ERROR | The given drive could not be found by the system, or the file system is not supported. |
| File could not be opened | ERROR | The given file could not be found, is encrypted or has been exclusively locked by the system. |
| Not enough space to move | ERROR | Contiguous free space is required to move a file somewhere else on the disk, and this amount of space must be at least as large as the file. Defragmentation cannot take place because there is not enough free space available. |
| Could not be moved | ERROR | The defragmentation failed because of problems with the file system. The file is fragmented. |
| MFT could not be defragmented | ERROR | The defragmentation of the MFT failed because of problems with the file system. It is still fragmented. |
| Not enough space to move the MFT | ERROR | In order to defragment the MFT, contiguous free space at least as large as the MFT must be available. The defragmentation cannot take place because there is not enough free space available. |
| Could not write to partition | ERROR | During the MFT defragmentation a file system error occurred which blocked writing on the disk. The MFT has not been changed. The drive should be checked for errors. |
| Attribute error in the MFT. Please start chkdsk. | ERROR | Erroneous entries in the MFT were found during the defragmentation. The drive should be checked for errors. |