In the university, encountered a user always malicious ping "I", know, feel that their computer has no privacy, how can not let users malicious ping "I" it? Let's see how to operate the small series! (Take Win7 system as an example)
1. Press the shortcut key "Win+r" on the keyboard, open the Run interface and enter "Gpedit.msc" to open the local Group Policy Editor. As shown in Figure 1
Figure 1 Opening the local Group Policy Editor
2, "Computer Configuration" → "Windows Settings" → "Security Settings" → "Advanced Security Windows Firewall" → "Advanced security Windows Firewall-local Group Policy Objects" → "Inbound Rules" → "new rule" as shown in Figure 2
Figure 2 New Rule
3, in the New Inbound Rule Wizard, select Custom in the rule type, next. As shown in Figure 3
Figure 3 Customizing
4, in the "program" option, click "All Programs", next. As shown in Figure 4
Figure 4 All Programs
5. In the Protocols and Ports option, select "ICMPv4" and Next, as shown in Figure 5
Figure 5 Selecting "ICMPv4"
6, in the scope option, click Next
7, in the "Action" option, select the "Block Connection" option, as shown in Figure 6
Figure 6 Blocking connections
8, in the "Configuration file" option, next. In the name option, fill in a name, and then press Finish.
(This digest is from http://www.windows7en.com/Win7/19188.html)