Windows 7: a longer life method when You don't hack or crack and no key

[Bonus]

Extend Windows 7 Trial Period for users who have no key or don't want to use a crack or hack.

To extend the trial period by another 30 days, load the command prompt in Windows 7 as an administrator and enter the following command:
slmgr.vbs –rearm
or simulair:
rundll32 slc.dll,SLReArmWindows
or:
sysprep /generalize
Reboot Windows 7 so that the changes can take effect and test Windows 7 for another 30 days.

[thenanoguy]

i always wanted to find that hack method ,thanks dude

[anykey]

I seem to remember reading that this will adversely impact your installation as it nears the end of the trial period.
You get a BSOD, a Black one, not Blue.
I was going this route, but changed my mind and keyed in a valid licence code when my 30 days ran out. Why not?