how to defragment disk

1. Use the shortcut key "Win+r" and then open the window of the "Run" command, then write "regedit" in the Run bar and click OK to open the Registry Editor for the next step. 2, in the Open new Registry Editor column, and then sequentially

same.Copy CodeThe code is as follows:Response.Write ("%>The function of this code is to tell the user that if the implemented function has been achieved, but it is best to refresh the original page when returning to show the new information or let the deletion of things are not displayed. However, this code does not refresh the original page when it is returned.So you need to add such a piece of code to the original page:This will do what we have to do--go back to the previous page and refresh.

HTTP to 3 times to shake a handshake or something, reduce the network overhead; Next is the RPC framework generally has a registration center, has a wealth of monitoring and management , release, downline interface, dynamic expansion, etc., is a non-aware, unified operation for the caller.SummarizeRPC services and HTTP services still have a lot of different points, in general, the RPC service is mainly for large enterprises, and the HTTP service is mainly for small enterprises, because RPC is m

SQL Server Defragment index fragmentation testThe way SQL server organizes indexes is just a few, and always smart to join the intelligent judgment very uncomfortable, or worse than Dbms_advisor:1SQL SERVER 2000/2005Inquire 2000Use Db_nameDECLARE @table_id intSet @table_id =object_id (' table_name ')DBCC SHOWCONTIG (@table_id)2005SELECT Index_id,index_type_desc,avg_fragmentation_in_percent,page_countFrom Sys.dm_db_index_physical_stats

This article collects in my notebook, because cannot find the original source. Omitted in this, as if who knows can contact me plus.The core is to use the MySQL system table and the "optimize table name " command, the MySQL data table for the space release. Because both the Delete and drop table do not release the tablespace (thetruncate command frees the tablespace "delete all data"), it needs to be freed with the optimize command.The purpose of this stored procedure is to

window| Hard Drive This topic is a cliché, see the old birds naturally needless to say, but do not forget that there are a lot of friends just contact the computer, they are not clear about the cleaning of Windows system, so this article specifically explains, although there are many online methods, others as long as the following simple few can be. 1. Organize the hard drive regularly Serious hard disk fragmentation can drastically reduce your comp

Operating environment: Ubuntu 14.10 MySQL 5.6.25 For tables that contain BLOBs or text fields, if you frequently modify or delete classes, you will need to perform regular optimize table commands to defragment them. 1.create table T1 (id varchar (), content text) Engine=myisam, default Charset=utf8; Storage Engine uses MyISAM 2. Inserting data INSERT into T1 VALUES (1, repeat (' Tony ', 100)); --repeat (' Tony ', 100), return Tony Repeat 100 times af

-Delete all data from the specified table[Usage 2]DELETE from table name WHERE field name = field value;Problem-basically do not use DELETE statements in the actual operation, in order to prevent user regretSQL Action (delete)-Physical Delete: delete-Tombstone: Surface removalAdds a (state|status) field to the specified table that represents the status of the current record-A value of 1: Indicates a normal record-A value of 0: indicates record deletion"DQL" Check"Basic Query"[Usage 1]SELECT * fr

basis (e.g., once a month). The Disk Defragmenter module currently provided by Windows Optimizer can analyze local volumes, defragment files, and folders so that each file or folder can occupy separate and contiguous disk space on the volume. This allows the system to access files and folders more efficiently, and to save new files and folders more efficiently.

First, describe how the various operating systems start to DOS: WIN9x system: Press F8 after the system is started, and press enter for the first item to enter the basic dos7.x environment that comes with the system.2 K/XP/2003: the system does not have a built-in DOS, And the DOS environment needs to be obtained through the DOS boot disk or virtual soft drive. This article describes how to create four DOS boot disks. The basic program files that exi

First explain the various operating systems to boot to the DOS path: Win9x system: After the boot press F8, select the 5th entry, you can enter the system with the basic dos7.x environment. 2K/XP/2003: The system does not come with DOS, it needs a DOS boot disk or a virtual floppy drive to get the DOS environment. This article introduces 4 kinds of DOS boot disk production methods, 4 kinds of Startup

How to create a universal dos boot disk! (Floppy disk + CD + USB disk + hard disk + NTFS + Emergency utility)This article is transferred from arong. The copyright of this article belongs to the administrator of the Arong Software Forum, nnmm.First, describe how the various operating systems start to DoS:Win9x system: P

The final exam immediately, the teacher review class said PPT is a concise version of the teacher said the class before the PPT can give but this can not, if the end of the term will pass. Ben wanted to put me to spend 3 hours to do the U disk Assistant in the classroom computer running, Class I can get ppt, but I am so just awe-inspiring, and information security Professional I have excellent professional quality. I still gave up doing bad things. I

magnet can store information. The hard disk is superimposed by multiple platters, separated from each other by washers. Note: Each platter has two sides, so it also corresponds to 2 heads per disc.Logical structure of the diskWhen the operating system (Windows,linux or Mac OS) reads and writes to the hard disk, the file system is used to combine the sectors of the hard

Insert the U-disk first, run cmd,Enter DiskPart, enter,(Input list disk, enter, you can see the disks roughly, U disk is generally disk 1)Then input select Disk 1, enter,Then enter clean, enter,Close the command line interface.Right click on the computer, select Manage, go t

1. Here we want to find a production of U disk Startup Disk function, in Baidu search "U kai Wang u disk Startup Disk Production tool" as shown in the following figure 2. Now we have just downloaded the software extracted in the computer. 3. Then find the directory Run "U Kai Wang Startup

1. We first prepare a U disk at least 3G above, and then download a "U Warrior" installed in the computer after we will be ready to insert a U disk into the computer, and then click into My Computer into the right click "format" can be. 2. Then we open the "U Warrior" in the computer to find we want to install the U disk, then click on the software interface "

I recently ran a VMware + Linux + Oracle10g RAC experiment and encountered a shared disk problem. I will summarize this as a topic and share my experiment experience. The first thing to note is that this experiment has not reached the state of disk sharing I want. It is mainly because the shared disk is not synchronized with the data of the shared

monthly routines, you can run the utility if certain events occur. You should run Disk Defragmenter in the following situations: • Added a large number of documents. • Only about 15% of available disk space. • A new program or a new version of Windows is installed. To use Disk Defragmenter: 1. Click Start, point to All Programs, attach to attachments, Syst

After a hard disk has been in use for a period of time, the free sectors on the disk are dispersed to the discontinuous physical locations throughout the disk because of repeated writing and deletion of the file, thus making the file unable to have contiguous sector classes. In this way, read and write files need to go to different places, to increase the head mo