Windows is the most favorite operating system .Many of us have no windows xp product key.So we use trial virsion of windows xp.Now we can extend this trial periods of windows xp or vista or windows 7.So here is the step-by-step method to extend this trial periods of windows xp or vista or windows 7.
1. Click on “Start button -> All Programs -> Accessories“. Right-click on “Command Prompt” and select “Run As Administrator“. If you are prompted to enter password, enter the password and continue. You can also open Command Prompt in Administrator mode by typing “cmd” in Startmenu Search box and press “Ctrl+Shift+Enter“.
2. Now provide following command:
slmgr -rearm
3. You'll be prompted to restart Windows, restart it and the trial period will be reset to 30 days again.
4. You can use the same command 3 times. In this way you'll be able to use Windows for 120 days without activation.
5. Now its time for the main trick. Open regedit and goto:
For Windows Vista:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\WindowsNT\CurrentVersion\ SL
For Windows 7:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SoftwareProtectionPlatform
6. In right-side pane, change value of SkipRearm to 1.
7. Now you'll be able to use the slmgr -rearm command 8 more times. So you'll get total 360 days for using Vista and 7 without activation:
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