Windows 7 Will extend licence command work for W7


New Member
Just curious to see if the elevated command slmgr -rearm will actually extend the expiry date by another 30 days after Aug 1. If it does then you can get 3 "goes" at this which will give you another 90 days so until late November.

Anybody been daring enough to change the BIOS date and have a go with this.

note PLEASE BACKUP YOUR OS BEFORE changing the BIOS date.



New Member
Hi there

1) BACKUP (Take an IMAGE DUMP -- DON'T USE SYSTEM BACKUP) of your current OS.
2)) Change the Bios date to something like 27 Jul 2009 -- Note change the BIOS not the date / time in Windows Do this via the SETUP Screen in the BIOS (usually press Delete immediately the computer boots).
3) Boot Windows 7
4) run command prompt AS ADMINISTRATOR or in the RUN COMMAND
type in the following slmgr -rearm

5) see if it extends license period

6) re-boot again this time changing BIOS to say AUG 15 (anything past AUG 1 but < 30 days from the previous date yoy entered --in my example 27 Jul.

7) See if windows works.

if it does you can do this command 3 times which will allow you to use W7 until nearly end of NOV :p:p

Now Important

Re-boot again -- set your BIOS back to current date




New Member
Hi there
actually I'm just about to try it both on build 7000 and 7022 builds 32 bit.

During the week I often am on 3 assignments at once so I haven't always got time --and there's nothing wrong in asking if someone has already done this. One doesn't have time always to perform all possible tests --that's one of the advantages of the Internet --it's called COLLABORATION.

I'm quite happy to experiment when I have the time but this week was in Amsterdam, Berlin and Munich on 3 different days so not always able to sit at a bunch of computers in a "computer lab".

If you are on a professional assignment --Rule nr 1 : NEVER EVER use your work computer for messing around with / downloading stuff from the Internet. I need the machine as part of my work tools.

The steps I've outlined make it 100% save to do so PROVIDED YOU BACKUP STUFF FIRST which I usually do.

If you go back through my posts you'll see I've done loads of testing so I think remarks like you made above show

1) either you are a very young guy who doesn't understand working with other people one bit
2) you just post and never actually read the information other people supply
3) must be a nightnmare to work for -- when at work do you actually ever eat lunch together with a bunch of colleagues or are you always on your own.

Sorry to be nasty but comments like you made are totally out of order.



New Member
So, you're a busy guy. I can respect that.

I was just curious as to why you haven't tried it yourself, that's all.

1) I am probably older than you are.
2) I read more than I post.
3) I try never to be the boss of anyone. But yes, I would probably be a nightmare to work for.