1 : Ipconfig

The “ipconfig” command is used for view or modify a computer’s IP addresses. For example, For view a Windows 7 system’s full IP configuration, you can use the below command:

ipconfig /all

When system has acquired its IP address from a DHCP server, you can use the ipconfig command to release and after that renew the IP address. watch the following commands:

ipconfig /release

ipconfig /renew

For flush the DNS cache by using this command:

ipconfig /flushdns

2: File Signature Verification

I you want to check the system files are digitally signed. Use the command to launch the File Signature Verification tool is:

sigverif

3: Driverquery

If you want to see which drivers are installed on a Windows 7 , you can do so by running the driverquery tool. The command is:

driverquery

If you need extra information, you can use the -v switch. Another option is to the -si switch, which causes the tool to display signature information for the drivers.

driverquery -v

driverquery -si

4: System File Checker

The System File Checker used to verify the integrity of the Windows system files. If any of the files are found to be missing or corrupt, they will be replaced. The command is as following:

sfc /scannow

5: Nslookup

The nslookup tool can used to verify that DNS name resolution is working status. When you run nslookup against a host name, the tool show the name was resolved. This tool can be extremely helpful when troubleshooting problems related to legacy DNS.

To use this tool, just enter the nslookup command, followed by the name of the host you want to resolve. For example:

nslookup abc.hostname.com

6: Ping

Ping is used to verify TCP/IP connectivity to a network host. To use it, simply enter the command, IP address of the host you want to test. For example:

ping 192.168.1.1 -t

7: Pathping

Pathping is designed for environments when one or more routers exist between hosts. It sends a series of packets to each router that’s in the path to the destination host. Command is as following.

pathping 192.168.1.1

8: Repair-bde

If a drive that is encrypted with BitLocker has problems, you can sometimes recover the data using a utility called repair-bde. To use this command, you want to add a destination drive to which the recovered data can be written, as well as your BitLocker recovery key or recovery password. The command is:

repair-bde <source> <destination> -rk | rp <source>

Example :

repair-bde c: d: -rk e:\recovery.bek

9: Tasklist

The tasklist command used to provide information about the tasks that are running on a Windows 7. Watch the following command:

tasklist

The tasklist command has 2 optional switches. One is the -m switch, which is tasklist to display all the DLL modules associated with a task. The other is the -svc switch, which lists the services that support each task. Watch the following commands :

tasklist -m

tasklist -svc

10: Taskkill

The taskkill command terminates a task, either by name (which is referred to as the image name) or by process ID.Follow the taskkill command with -pid (process ID) or -im (image name) and the name or process ID of the task that you want to terminate. watch two examples of how this command works:

taskkill -pid 4104

taskkill -im iexplore.exe