Windows 8
Step 1:
On the Charms bar, click the Search charm.
Step 2:
Enter computer on the Search field and press [Enter] key.
QUICKTIP: Make sure you select
Apps.
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| Mr. Sundaram Tripathi |
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Step 4:
Select
Change advanced system settings... option.
Step 5:
Select
Computer Name and click
Change… button.
Step 6:
Enter a unique
Computer name and your
WORKGROUP name then click
OK
QUICK TIP: All computers in the network should have the same Workgroup name.
Step 7:
You will be prompted to restart your computer for the changes to take effect. Click OK.
Step 1:
Click the
Pearl 
icon, right-click
Computer and click
Properties.
Step 2:
Click
Advanced system settings under Control Panel Home.
Step 3:
Click on the
Computer Name tab and then click on the
Change… button
Step 4:
Enter a unique
Computer name and your
WORKGROUP name then click
OK.
QUICK TIP: All computers in the network should have the same Workgroup name.
Step 5:
You will be prompted to restart your computer for the changes to take effect. Click
OK
Windows XP
Step 1:
Right-click on My Computer located on your desktop and then click Properties.
Step 2:
Click on the Computer Name tab and then click the Change… button.
Step 3:
Enter a unique
Computer name and
WORKGROUP name in the Workgroup field then click
OK
NOTE: The
Workgroup should be the same on all computers in the network. You will
be prompted to restart your computer for the changes to take effect.