For each drive listed, you will see its Current Status in the last column, which tells you how fragmented your drive is and advises you on what to do (“OK,” meaning “no need to defrag,” or “Needs Optimization”).
If the fragmentation is less than 10%, click/tap the “Close” button at the bottom right side of the window to exit Optimize drives. It is not advisable to defragment your drive too often as this will contribute to the wear and tear of your hard drive.
You will know if the defragging process is finished when the running progress report stops and the entry in the Current Status column becomes “OK. ” Enclosed in parentheses beside “OK” is the percentage of defragmentation (0% if your hard drive is not too full). If your hard disk is large and there are many files and many of these files are fragmented, the defragging process may take hours to complete. In this instance, it would be better to start the defragging process and do some other things: read a book, do housework, take a nap, etc.
