How to optimize computer performance by modifying the registry

1, speed up the boot and shutdown

At [Start]--[run]--type [Regedit]--[hkey_current_user]--[control panel]--[desktop], change the numeric data of the string value [Hungapptimeout] to [200], Change the numeric data of the string value [Waittokillapptimeout] to 1000. In addition, in [Hkey_local_machine]--[system]--[currentcontrolset]--[control], Change the numeric data of the string value [Hungapptimeout] to [200], changing the numeric data of the string value [WaitToKillServiceTimeout] to 1000.

2, automatic shutdown Stop responder Program

At [Start]--[run]--type [Regedit]--[hkey_current_user]--[control panel]--[desktop], change the value data for string values [Autoendtasks] to 1, and restart.

3. Erase DLL files that are not used in memory

At [Start]--[run]--type [regedit]--[hkkey_local_machine]--[software]--[microsoft]--[windows]--[currentversion], in [ Explorer], add an item [Alwaysunloaddll], and the default value is set to 1. Note: This feature is deactivated if the default value is set to [0].

4, speed up the menu display

At [Start]--[run]--type [Regedit]--[hkey_current_user]--[control panel]--[desktop], change the numeric data of the string value [Menushowdelay] to [0], Adjust the value of [menushowdelay] to [200] and restart it if you feel that the menu display is too fast to fit.

5, speed up the automatic refresh rate

At [Start]--[run]--type [regedit]--[hkey_local_machine]--[system]--[currentcontrolset]--[control]--[update], will dword[ The value data for UpdateMode] is changed to [0] and can be restarted.

6, speed up reading ability to improve boot speed

At [Start]--[run]--type [regedit]--[hkey_local_machine]--[system]--[currentcontrolset]--[control]--[sessionmanager]--[ Memorymanagement], in the right window of [prefetchparameters], change the value data of [Enableprefetcher] as follows, such as the recommendation to use the PIII 800MHz CPU for changing the numeric data to 4 or 5, Otherwise, it is recommended that you keep the numeric data as the default value of 3.

7, the use of CPU L2 cache to speed up the overall performance

At [Start]--[run]--type [Regedit]--[hkey_local_machine]--[system]--[currentcontrolset]--[control]--[sessionmanager], in [ Memorymanagement] to the right window, change the value data of [Secondleveldatacache] to the same decimal value as the CPU L2 cache: For example: P4 1.6G a L2 cache is 512Kb, The numeric data is changed to decimal value 512.

8. Run the Defrag program when you start your computer

At [Start]--[run]--type [regedit]--[hkey_local_machine]--[software]--[microsoft]--[dfrg]--[bootoptimizefunction], the string value [ Enable] set to: Y equals open and set to N equals close.

9, Shutdown automatically shutdown stop response program

At [Start]--[run]--type [regedit]--[hkey_users]--[. Default]--[control Panel], and then in the [Desktop] right window, change the value data for [Autoendtasks] to 1, log off or restart.

10, speed up the broadband access

At [Start]--[run]--type [regedit]--in [Hkey_local_machine]--[software]--[policies]--[microsoft]--[windows], add a name [Psched] Item, add a DWORD value [NonBestEffortLimit] numeric data to the right window of [psched] to 0.

11, speed up the broadband speed

Open Registry Editor, find Hkey_local_machinesystemcurrentcontrolsetservicestcpip parameters, right-click parameters in the right margin, select left "new"-dword value edge , name it "DefaultTTL", right-click the mouse to select "Modify", change the value to 80 (hexadecimal), or 128 (decimal), and change the globalmaxtcpwindowsize value to 7FFF.

12, accelerate the Network Neighborhood

Open Registry Editor, locate Hkey_local_machine/sofeware/microsoft/windows/current version/explore/remotecomputer/namespace, and delete the {2227a280-3aea-1069-a2de08002b30309d} (printers) and {D6277990-4C6A-11CF8D87-00AA0060F5BF} (Scheduled Tasks).

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