Streamline unnecessary system files: download and install Windows7 Optimizer first. After downloading and installing, start the Windows7 optimizer, first enter the system optimization page, and make necessary optimization according to your own use environment. Then enter the system cleaning, the newly installed system does not need to be cleaned, and directly enter the "system disk slimming". First, analyze the contents of the system disk, and the software will sort out which files can be safely deleted. Generally speaking, everything can be deleted except the system wallpaper. After the analysis is completed, click Delete. (If you want to delete it, you can go to the folder C:\Windows\Web\Wallpaper, copy Lenovo_ 1 to another disk, and then copy it back after deletion. Usually this kind of wallpaper is kept, and the rest feels ugly. Which one to delete depends on your hobby! )

Close the hibernation file. Method: Start-> All Programs-> Accessories-> Command Prompt, run as an administrator, enter "powercfg -h off" and press enter;

Close the virtual memory, right-click the properties of the desktop computer, enter the advanced system settings, then click Settings under the performance menu of the advanced options to enter the performance options, click Advanced, click Change in the virtual memory settings options, remove "Automatically manage the paging file size of all drives", and click "No paging file" below to confirm the exit. The system will automatically delete the virtual memory after restarting;

Turn off system restore, right-click the properties of "Computer" on the desktop, enter advanced system settings, then enter system protection, move the mouse to the drive letter of the configuration system disk, click Settings to enter system restore settings, and turn off system protection directly.

Refining and compressing WinSxS. C:\Windows\WinSxS is very big, about 4G. This is an important directory under the Windows directory, and the files in it are the premise to ensure the normal operation of Windows. Newcomers should not be simplified, but they can be compressed. After compression, the file size is only 2.94G, which is enough to squeeze out the space of1g. When compressing, you need to obtain administrator rights.

Delete theme wallpaper you don't like. Windows 7 comes with many theme wallpapers, and you can delete them yourself if you don't like them. Go to the Windows 7 theme wallpaper folder under C\Windows\Web\Wallpaper, and delete it if you want!

Delete the small game that comes with Windows 7 system. Enter the control panel, enter the program in turn, turn on or off the Windows function, find the game, click the plus sign to expand, remove the check mark in front of the game you want to delete, then confirm and restart later. At the same time, you can turn off the optional components of TabletPC and the function of remote differential compression.

Delete the automatic update patch. Go to c: \ windows \ software distribution \ download to delete the automatic update patch.

Delete the system help file. The system help files in C:\Windows\Help and the files in the nui folder can be deleted at will. Files under nvcpi, Windows\en-US and zh-CN folders can also be deleted, but the ownership of the files needs to be obtained when deleting.

Periodically delete files in the C:\WINDOWS\Prefetch folder.

Change the default installation path of commonly used software. Pay attention to changing the installation path to disk D, that is, just change the default C to D before the default installation path.