This article will give you a brief introduction about Windows built-in disk and partition manager - Disk Management.
Disk Management is a routine task when you use computer.
Disk Management includes error routine, Disk Defragmenter and Defraggler.
Then, it reads data.
And finally, it does reading processing transfers data to disk cache and memory.
Searching time is called average seek time (milliseconds) in hard disk performance index.
Average seek time of hard disk is less than 9.5ms.
When disk is read, system will check whether the data are in the cache.
If the data are in the cache, they will be read directly.
If not, disk will be accessed, which is also called reading disk.
When the same data need to be read for several times, cache plays a great role.
But if a file is read for the first time, cache can do nothing.
So, searching time and reading time largely affect the efficiency of program execution.
And 1 represents disk file.
it’s possible for you to only insert fragmented file 111 into the space.
Of course, this reduces the reading efficiency of files.
But if the disk is defragmented, the place will become 1111 .
Then the files 111 can be copied into the space in the most orderly way.
These simple problems sometimes may not be noticed by users.
They may think that their hard disk is in good state.
And they may not perform disk defragmentation.
So, its no doubt that we should regularly defragment hard disk.
Actually, in most cases, regular disk defragmentation reduces wear of hard disk.
Anyway, its easier for head to read files from 1 than from 8.
Whenphysical memoryneeded by applications is not enough, OS will produce temporary swap files on hard disk.
Then OS makes virtual memory by using hard disk space occupied by the files.
Virtual memory management program will frequently read and write on hard disk.
This may produce large amounts of fragmentation.
This is the main reason for producing disk fragmentation.
There are also other reasons.
In general, file fragmentation doesnt cause problems in system.
But too much file fragmentation will make system seek back and forth when it reads files.
This will degrade system performance.
Whats worse, service life of hard disk may also be shortened.
In addition, too much disk fragmentation may cause loss of files saved on disk.
In the process of file operations, Windows system may call virtual memory to synchronously manage program.
2.Partitioning Operations
Large Windows is made up of many modules.
If you want to be proficient in Windows, you have to start from the module.
In Windows, Control Panel is a very important module.
For computer freshmen, its quite necessary to know Windows operations by knowing Control Panel first.
Difficulty
Disk Management is an important component of Computer Management in Control Panel.
For computer freshmen, disk management tool can help them complete some important operations without using third party tool.
For example,drive letterchaos appears when two hard drives are installed on computer.
you might use Windows built-in Disk Management to directlychange drive letters.
Its a little difficult to change Windows disk drive letter.
If you operate incorrectly, system stability may be affected.
Step 1:In Windows, Disk Management must be used to change drive letter.
Where can we find this tool?
it’s possible for you to click Start Control Panel Administrative Tools Computer Management.
At this time, a Computer Management window will pop up as shown in the above screenshot.
it’s possible for you to click Disk Management from the left pane.
And youll see all disks on the computer in the right pane.
Then, we should directly replace the CD-ROM drive letter with the previous letter used by hard disk.
Finally, we can replace hard disk drive using a spare letter with the previous letter used by CD-ROM.
We will do operation on hard disk according to this way.
Here we right click hard drive G:.
Then we choose Change Drive Letter and Paths for G: () in the pop-up menu.
Next, we click Change in the pop-up dialog box.
After Change Drive Letter or Path dialog box pops up, we choose Assign the following drive letter.
And then we click right drop-down button to choose a spare drive letter, such as O:.
Now, we have successfully changed the drive letter of hard drive G:.
You may replace hard disk drive letter O: with D: and then restart computer.
Now, youve successfully interchanged CD-ROM drive letter with hard disk drive letter.
Delete Partition
You should open Disk Management option and right click drive M:.
Then, you choose Delete logical drive and click Yes in the dialog box.
Free space will show on Drive M: .
Then you click Next to open Select Partition punch in dialog box.
You choose Logical drive and click Next.
Then, you choose drive letter and path and click Next to format partition.
In Format Partition dialog box, system prompts: Formatting will erase all data on this volume.
To format the volume, click OK. To quit, click Cancel.
You click OK to start formatting.
you could divide remained disk space into another partition according to your needs in the same way.
