Novice tutorial: Win2000 registry setting skills

The registry is a mysterious place for many newcomers, just change the fear that the system will collapse from this, so many people are afraid to promulgate more than the pool, in fact, the registry is not so terrible, As long as there is a method to be careful. Many settings involve the registry, please be careful, pay attention to backup! The object is Windows 2000 Professional.

Memory Performance Optimization: Set ClearPageFileAtShutdown=1 in HKEY_LOCAL_MACHINESystemCurrentControlSetControlSession ManagerMemory Management.

If the memory ≥ 128M, the following optimizations: DisablePagingExecutive key value is set to 1: The file that the system is running is forced to remain in memory instead of moving into virtual memory. The LargeSystemCache key is set to 1: Windows 2000 uses the system cache (same as Vcache in Windows 9x), which greatly improves disk input/output performance.

System performance optimization:

1. CPU L2 cache L2: CPU L2 cache, is a component of the CPU. However, Windows 2000 does not detect the secondary cache and needs to be manually set. HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemoryManagementSecondLevelDataCache, the value (in kilobytes) is adjusted to the actual size of the secondary cache of the CPU used. Note: You can choose hexadecimal or decimal, and fill in the size value should be selected in decimal.

2. Modifying Disk Cache Windows 2000's default I/O page file is conservative. For different memories, it is better to use a different disk cache. HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlSession ManagerMemory ManagementIoPageLockLimit, modify its hexadecimal value according to memory: 64M→1000; 128M→4000; 256M→10000; 512M or greater →40000.

3. IRQ Interrupt Request Each major part of the computer has an IRQ interrupt number. Optimization is achieved by modifying the priority of each IRQ request. The optimization here is the system/CMOS real clock, which improves performance through the motherboard. 1) Identify the components that need to achieve higher performance. 2) Find the IRQ interrupt number that the component is using. System Properties → Hardware & Rarr; Device Manager & Rarr; Right click on the component to be checked → Attribute → Resources, you can see the IRQ interrupt number that the device is using. Record the interrupt number. 3) New DWORD double-byte value IRQ#Priority (# is the specific interrupt number) in HKEY_LOCAL_MACHINESystemCurrentControlSetControlPriorityControl, the value is set to 1. 4) Restart. It is recommended to optimize the system CMOS real time clock (IRQ8) to improve the performance of the entire motherboard. To undo the optimization settings, simply delete the set registry key.

4. Do not load DLL files After the browser is used, some DLL files will stay in memory for a period of time, and some of the memory will be occupied by useless DLL files. HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionExplorer New character value: AlwaysUnloadDLL, the value is set to 1. To remove this optimization, set the key to 0 (or delete the key). Note: This optimization takes effect after Windows restarts.

5. Delete redundant DLL files There are a large number of dll files in the Windows2000 System and System32 directories that are shared by the system or application software. Frequent installation of uninstall software will increase dll junk files, take up hard disk space, and reduce system speed. HKEY_LOCAL_MACHINESoftwareMicrosoftWindowsCurrentVersionSharedDLLs stores information about the dll path of the software share. The value of each dll file indicates that it has been shared by several applications. If the value of the item is 0, it means that it is not shared by any software, you can delete it, and then delete the corresponding dll file.

6. Streamline the registry (use with caution!) The way to streamline the registry is to rebuild the registry: 1) Use Regedit to export the entire registry under Windows 2000 (note: make sure to export all the registry instead of a branch) And save it as c:x.reg. 2) Restart with DOS 7.0 and load the disk cache program Smartdrv.exe to speed up processing. 3) Run the DOS version of REGEDIT: C: Windowsregedit /c x.reg (parameter /C means to regenerate the entire registry from the specified file), the rebuilt registry file is reduced by about 25-30%, to achieve the purpose of streamlining .