1. Click the Start button and Open Network Connections , Open Control Panel, Open Network and Internet, Open Network and Sharing Center, and then Open Manage network connections.

2. Right-click the connection that you want to change, and then click Properties. If you are prompted for an administrator password or confirmation, type the password or provide confirmation.

3. Click the Networking tab. Under This connection uses the following items, click either Internet Protocol Version 4 (TCP/IPv4) or Internet Protocol Version 6 (TCP/IPv6), and then clickProperties.

4. To specify IPv4 IP address settings, do one of the following:

•To obtain IP settings automatically, click Obtain an IP address automatically, and then click OK.

•To specify an IP address, click Use the following IP address, and then, in the IP address, Subnet mask, and Default gateway boxes, type the IP address settings.

5. To specify IPv6 IP address settings, do one of the following:

•To obtain IP settings automatically, click Obtain an IPv6 address automatically, and then click OK.

•To specify an IP address, click Use the following IPv6 address, and then, in the IPv6 address,Subnet prefix length, and Default gateway boxes, type the IP address settings.

6. To specify DNS server address settings, do one of the following:

•To obtain a DNS server address automatically, click Obtain DNS server address automatically, and then click OK.

•To specify a DNS server address, click Use the following DNS server addresses, and then, in thePreferred DNS server and Alternate DNS server boxes, type the addresses of the primary and secondary DNS servers.

7. To change DNS, WINS, and IP settings, click Advanced.

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1. Fire the Virtualbox and click on Newbutton located at top left hand corner.

2. Now you will be in new Virtual Machine Wizard, Click Next.

3. Name the Installation like Windows 7 etc. In Operating System Pane select Microsoft Windows and in Version pane select Windows 7.

4. Allocate the Random Access Memory { RAM } to virtual machine, 1GB is recommended. Every time a virtual machine is started, VirtualBox will allocate this much memory from your host machine and present it to the guest operating system, which will report this size as the (virtual) computer’s installed RAM.

5. specify a virtual hard disk for your VM. If you have previously created any virtual hard disks which have not been attached to other virtual machines, you can select those from the dropdown list in the wizard window.Otherwise create a new Virtual HDD by Click on New >> Next >> Fixed Size Storage >> Specify the Size and Location.

A dynamically expanding file will only grow in size when the guest actually stores data on its virtual hard disk. It will therefore initially be small on the host hard drive and only later grow to the size specified as it is filled with data. A fixed-size file will immediately occupy the file specified, even if only a fraction of the virtual hard disk space is actually in use. While occupying much more space, a fixed-size file incurs less overhead and is therefore slightly faster than a dynamically expanding file.

6. Now you have a virtual Machine with Virtual Ram, Virtual HDD and Virtual Lan now Installa Virtual Operating System. Insert your DVD of Windows 7 in your Physical drive or mount the ISO image into virtual drive and note the letter of drive. Fire the Start button.

Click Next.

7. In Media type select CD / DVD-ROM Device and in media source pane select the drive letter or mount the image directly in Image File option.

8. That’s it sit back, releax and enjoy the taste of Windows 7.

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