To know more on installation guide, please check Install and Configure SQL Server 2008 Express by CondorMan.
I've followed the steps and got error message "'' is not a valid login or you do not have permission." and print screen as below.

I have no idea why is this. I've tried few suggestion stated in some of the forum:
- I've tried to change my user name and try to install.
- Create a new user "sa" with strong password. Login to window using this account and do installation.
Finally, i try to rename my machine/computer name and try to install and the installation completed successfully.

Conclusion:
This may be a bug from microsoft but i'm not sure.
My scenario: computer name = my user account
My Solution: change computer name to != user account then do installation.
p/s: Change user account won't help.
Hope this can help you. Share your solution if you have different one.
That sounds frustrating!
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You saved me! Thank you very much!
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ReplyDeletenever thought the solution is like this. but thank you so much.
I tried for hours before i read your tip. You saved me !
ReplyDeleteGerhard
Thank you, for the information. I have had trouble with this for some time, but now it works. Well, I can get it to work - I guess it is not correct to say it works, when the SQL installer behaves like that. :)
ReplyDeleteEric March Adelaide
ReplyDeleteComputer Name and User name must not be the same. Changed computer name all is well. Thankyou heaps
Computer name and user name cannot be the same.
ReplyDeleteChanged computer name
All is good. Thanks heaps.
Grt info, helped me a lot.
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ReplyDelete