It is well known that the system will generate disk fragmentation after running for a period of time, which will seriously affect the running speed of the system. Therefore, the Windows system itself also provides the Defrag command to help users clean up the disk fragmentation. Windows 7 is no exception, unlike Vista. Defrag in Windows 7 has more options, and its command line version contains more instructions.
Defrag/? : Display all options;
Windows 7 provides a lot of very useful commands, such as "/H" means to perform operations with higher priority, "/M" means parallel execution of each volume If you type cmd into the command prompt dialog box and type "defrag /C /H /M" in it, the system will perform disk fragmentation on all volumes in parallel with higher priority.
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