If it is XP system: take more computer exercise every day, eat less greasy food, and stick to it for a while, and you will lose weight! 1. Make the system disk cleaner (to ensure the running speed of your computer in a certain program) 1. Enter: Control Panel-System-Advanced-Environment Variables 2. Click TEMP-Edit in the user variable to change the long list of contents to D:TEMP (it can be changed to other disks as needed, but it is not the location of the system) 3. Because these things are the main internal factors that make your system disk expand rapidly, their properties are hidden and some friends can't find them:) 4. Change TEMP and TMP to the above values in System Variable. 5. Right-click my document-properties-target folder on the desktop, set the location of the target folder, change it to D: my document or D: my document (you decide which one you like), and then move it at will. This is very important. In fact, when our computer crashes, there are generally nothing important in the system disk, but all the useful things are in my document, so you don't have to worry about anything if you move. Also, quite a few friends won't back up my document content in DOS mode (because the folder name is very long, it will be more troublesome if it is in Chinese) 6. Right-click Internet Explorer-Properties-General-Temporary Internet File-Settings-Move Folder-Select D: Temporary Internet File (if not, you can create it first, of course, you can use D:TEMP or something else, you have the final say) -OK 7. System-Advanced-Performance-Settings. Select C or the partition where the system is located-no paging file-Settings-OK to transfer the virtual memory to other hard disks. Well, the world (system disk) is quiet:) (note: virtual memory, temp, tmp, I transferred them all, but I changed them back after installing some software. If I change it, I suggest that I must remember the original path. (2) lose weight for XP (if you have enough hard disks, you don't have to lose them, because if you want to use one of the functions, there is no way. 1. Delete system file backup sfc.exe/Purge cache 2. Delete the Driver.cab file (73mb) in the directory of winodwsdriver cachei386. 3. Cancel the system restore (but remember to keep the system restore of the system disk. If you don't want to use it, then turn it off. I'll keep it anyway:) 4. Delete the help file (minus more than 40 mb) 5. Delete the file under WINDOWSsystem32dllcache (minus 200-300mb), which is a spare dll file. As long as you copy the installation file, you can do this completely. 6. Install the tool software on the system disk, and install the application software on other hard disks. Special reminder: your FOXMAIL, QQ and other things must not be installed in the system disk. Once the system is finished, you are finished:) (This is also good for reinstalling the system. 7. Delete the input method not used under winodwsime! (Japanese, Korean, Simplified Chinese Input Method, 84.5MB) 8. If you think you have the ability to deal with some emergencies, then use ntfs to install xp, which will save the hard disk itself. Don't be a hero, or you'll cry: P 3. Delete the nasty msn, winodws messenger to C:winodwsinf, open sysoc.inf, and find msmsgs = msgrocm.dll, ocentry, msmsgs.inf, hide, 7. Delete Hide and change it to msmsgs = msgrocm.dll, ocentry, msmsgs. Go to Control Panel-Add Delete Program, and you will have the option to delete it. Fourth, let Dr. Watson, an incompetent China doctor, be laid off. The doctor looks at the computer and only tells you what the symptoms may be (I don't think he knows what the symptoms are), but he won't tell you what the disease is. The most important thing is that he will never meet you. What's the use of such a doctor? Let him be laid off like me:) At the beginning-> Enter "drwtsn32" command in "Run", or "Start"->; "program"->; "attachment"->; "system tools"->; "system information"->; "tools"->; "Dr. Watson", call out Dr. Watson in the system, and only keep the option of "Dump all thread contexts" (otherwise, once the program goes wrong, the hard disk will be read for a long time, occupying a lot of space. If this has happened before, please find the user.dmp file, which can save tens of MB of space after deletion). Unload useless dynamic links 5. Deleting a resource manager usually leaves useless dynamic links in memory. In order to eliminate this phenomenon, you can open the registry editor and set the key value: HKEY _ local _ machine software croofWindows CurrentVersionExplorer = dword:1,and this function will be closed. Restart the computer. Sixth, small hard disk users are blessed, and friends with burners can do the gho version of XP. First of all, when xp is newly installed, it is about 1.5G, and the default hibernation and virtual memory files account for 3 10m. If these two files are closed, it can be reduced to1.2g; Delete C: two compressed packages 80m in c:winodwsdllcab (which only play the role of not playing the system disk at a time) and reduce them to1.1g; I also deleted the 30m Japanese Japanese dictionary (I hate XXXXX), and deleted the unnecessary font in C: Winodwsfon (about 50m) as1g; Delete all the contents of c:winodwssystem32dllcab, which is a copy of dll 320m. You can safely delete it, so it is reduced to 680m m. There are other 250 million forgotten (a little much, Microsoft will be very unhappy when it knows), and interested friends can find it themselves. I heard that the minimum can be reduced to below 400m m, so be careful not to delete it wrong. This article is for reference only, please bear the consequences yourself. Seventh, the software that completely slimmed down WINXP came out! ! You can uninstall any bundled component. Including IE. OUTLOOK, even Movie Maker, MSN and so on. That's it: there are many download addresses for XPlite, and here are two: Com mahjong master (12.6m) C: \ Program files \ Microsoft Games \ Mineweek (4.96m) C: \ Program files \ Microsoft Games \ Purble Place bitscn.com Kitchen Competition (36.4m) C: \ Program Files \ Microsoft Games \ Solitaire bitscn.com Card (696k) C: \ Program Files \ Microsoft Games \ Spider Solitaire bitsCN.com Spider Card (697k) 12.c: \ Users \ public (delete) the public folder of all users, which contains some sample pictures and among them, C:\ Users \ Public \ Recorded TV \ Sample Media records sample files for TV of Windows Media Center (143M), and C: \ users \ public \ music \ sample music is sample music (59M). Modify the registry to speed up Windows 7 system startup (1) and run regedit to enter the registry. 2) Open the "Enable Prefetch" key on the right of: HKEY _ Local _ Machine \ System \ Current Control Set \ Control \ Session Manager \ Memory Management \ Prefetch Parameter 3). Change its default value from 3 to 0. 4) Restart the computer to modify the registry to speed up the shutdown of Windows 7 system 1) Run regedit to enter the registry. 2) HKEY _ Current _ User Control \ Panel Desktop ",just set the key value of" AutoEndTasks "to 1. 3) Then change "HungAppTimeout" to "4000 (or below)" (default is 5000), and the key value is also under "HKEY _ Current _ User Control Panel Desktop"; The last step is to find "HKEY _ Local _ Machine System Current Control Settings Control", and also set WaitToKillServiceTi meout to "4000"; Removing the delay of the menu and removing the delay when the menu pops up can speed up the speed of window7 to some extent. The key value to be modified is in HKEY _ Current _ User Control Panel Desktop. Modify the "MenuShowDelay" key under it, change the default 400 of bitscn_com to 0, and press F5 to refresh the registry and restart. Shortening the waiting time before closing an application or process is similar to the waiting time before closing a service. Windows Vista has some time to wait for the application or process to shut down by itself before forcibly shutting down the application or process. Only after this time limit is exceeded will the Windows system stop forcibly. Therefore, shortening the default application shutdown or waiting time can also speed up the shutdown of Windows 7. The setting method is similar to the above. Find the following branch in the registry: HKEY _ Current _ User \ Control Panel \ Desktop Double-click "WaitToKillAppTimeout" in the right panel, and change its value from the default 20000 (also in milliseconds) to a smaller 5000 or 1000. In this way, if Windows gives a shutdown instruction and waits for 5 seconds or/kloc-, Saving Hard Disk Space After the release of Win 7 Weight Loss Raiders win7RTM, many friends installed windows7 system, but windows7 system is not as slim as winxp. The newly installed windows7 system takes up more than 10G of hard disk space without installing any software. The author has studied Microsoft's system and found that there are many unnecessary files in the system disk, and deleting them in time has no effect on the use of the system. Next, I will teach you to lose weight on win7. First, win7 loses weight and deletes the hibernation file hiberfil.sys I believe that many people still don't understand what computer hibernation is after using the computer for so long. In fact, computers have two ways to save electricity: hibernation and sleep. The frequently used function is the sleep function. When the computer is not used for a period of time, it enters the sleep function, that is, when the computer enters the low power consumption state after a certain period of time and the working posture is stored in the memory, 1-2 seconds can be restored to the original working state. This function is very practical and most commonly used. However, hibernation is to write the working state, that is, all memory information, to the hard disk. Take 4G memory as an example, that is, write 4G files to the hard disk first, and then turn it off. Boot recovery requires reading 4G files into memory and restoring the original working interface. Reading and writing 4G files takes a lot of time, no less than normal startup, so the hibernation function is not practical now. Heberfield SYS file is used to save the memory state during sleep. It will take up the space equivalent to the memory capacity of drive C (taking 4G memory as an example, this file is 4G), so it can be completely deleted without affecting everyone's use. Delete method: Run CMD with administrator privileges and play the following command: POWERCFG -H OFF will automatically delete files. (PS: How to run as an administrator: right-click All Programs-> Accessories-> Command Prompt, and select "Run as an administrator") Second, correctly set win7 virtual memory to lose weight plays a very important role in the computer. All running programs in the computer need memory. If the executed program is large or many, it will lead to memory consumption. In order to solve this problem, WINDOWS uses virtual memory technology, that is, a part of the hard disk space is used as memory, which is called virtual memory, and the virtual memory exists on the hard disk in the form of page files. Virtual memory is only a supplement to the lack of physical memory, so don't deify it. The reading and writing performance of virtual memory (that is, the reading and writing speed of hard disk) is only a few tenths of that of physical memory, and high-frequency reading and writing operations are very harmful to hard disk! Hard disk bad track is easy to happen! Don't use it if you can, and use it less if you can! The principle is enough+leave a small margin. In Win7 system environment, the memory is generally 5 12MB. According to the actual memory usage, the virtual memory can be set to 5 12-768MB (the sum of memory+virtual memory is generally 256MB higher than normal usage). 1GB memory, according to the actual usage of memory, you can set the virtual memory as 128-5 12MB (the sum of memory+virtual memory is generally 256-5 12MB higher than the normal usage). If the memory is more than 2G, you can generally disable virtual memory (if there are software restrictions, you can set a small amount of virtual memory, such as 128MB). Some people who do use a lot of memory, such as playing large 3D games, making large pictures, 3D modeling, etc. , and received a warning that the system memory is insufficient, and virtual memory needs to be increased appropriately. Generally, you can disable the virtual memory first, restart the computer to enter safe mode (don't run many programs at this time), then defragment it, and reset the virtual memory after completion, so that the page file can be read and written faster without fragmentation. Or use PE/ emergency disk to boot into the system, delete the page file, tidy up the disk, and restart. Take WIN7 as an example, right-click "computer", properties, advanced system settings, performance > settings ..., advanced, virtual memory > change ..., automatically manage cancellation, customize size, set, confirm, exit and restart. Third, win7 compression weight loss C:\Windows\winsxs folder This folder is the system installation folder and is not used most of the time. After compression, you can save more than 1GB of disk space. Methods: First, get the read and write permission of the WINSXS folder (by default, the administrator only has the read permission of this folder), then select WINSXS, click the right mouse button, and compress the contents in General-> Advanced ...-> to save disk space. The compression process takes 10-30 minutes, depending on the performance of the hard disk. Through the above three steps, your Win7 pure system should only account for about 6G.