If you enter the system, but you will not see the reaction

Symptom: When you start the system interface, you can't open anything. It takes about a minute to open.
Workaround:
First, please upgrade the virus database of anti-virus software, comprehensive anti-virus, to eliminate the cause of the virus.
Second, start → run, enter msconfig & rarr; OK. In the open system configuration program, close some unimportant services and startup programs, and restart the computer.
3. Go to “My Computer”——Tools——Folder Options——View ——Cancel “Auto Search Network Folders and Printers>
Fourth, after Windows XP starts to enter the desktop, the system will temporarily stagnate for a period of time. At this time, any program will be unresponsive. This is because the DHCP Client service of Windows XP is assigning an IP address to the NIC, and the system will temporarily stay for a while. . To solve this problem, just in the "Desktop & Rarr; Network Neighborhood & Rarr; Right & Rarr; Properties & Rarr; Network Connections", right click on the "Local Area Connection" icon, then select Properties, in the pop-up Properties window In the “General” tab list, select “Internet Protocol (TCP/IP)” and click the “Properties” button. In the pop-up properties window, select the “Use the following IP address” option and enter “192.168.0.1” and “255.255 respectively in the "IP address" and "subnet mask" .255.0”, (The specific IP address depends on your actual situation) Finally click OK to exit the settings window.
Start →Set →Network Connection →Right-click “Local Connection”→Properties→Double-click"Internet Protocol(TCP/IP)”→If the IP address is empty, click “ Use the IP address below to specify the IP address and subnet mask. If you can set the IP address to 192.168.0.X (X is any value between 1-255), the subnet mask can be set to 255.255.255.0→ OK → OK.
5. Clear the prefetch directory, enter the C:\\WINDOWS\\Prefetch folder, delete all files with the extension pf, and restart.