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Is there a registry setting I can change to apply this fix from http://support.microsoft.com/default.aspx?scid=303846?

You can disable blank password restrictions by using a policy. To locate and change this policy: Click Start, point to Run, type gpedit.msc, and then click OK to start the Group Policy Editor. Open Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Accounts: Limit local account use of blank passwords to console logon only. Double-click Limit local account use of blank passwords to consol logon only. Click Disabled, and then click OK. Quit Group Policy Editor.

I want to Run As to a different user with a blank password, but I can't. I get this message a lot with remote access too. How can I change it in Home Premium?

(I just saw this but the setting's not in the list.)

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I think you need to state the specific problem you are trying to solve and all the OSs involved. – Moab Oct 4 '11 at 1:10
    
@Moab: I want to run a program as a different user, a user who doesn't have a password, on Windows 7 Home Premium. Thanks for the answer, I'll try it soon. – Ryan O'Hara Oct 4 '11 at 15:43
up vote 10 down vote accepted

I found this, it may be for XP but suggestion to use regshot on a Pro Windows 7 PC to capture the registry change may solve it for you

Take a look at this registry key which may disable it. I believe when set to zero as shown.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\limitblankpassworduse:
0x00000000

I use a free program called Regshot to do comparisons of the registry before and after such a change. There are other programs that may be a bit easier to use but for the price and the fact that it does not have to be installed make Regshot a neat utility to have.

http://www.snapfiles.com/get/regshot.html --- Regshot.

Source of Information

I checked my Windows 7 Pro gpedit, that group policy location does not exist, they must have changed it in Windows 7 for security reasons.

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Works perfectly, thanks! – Ryan O'Hara Oct 6 '11 at 4:06
    
That's good news, so it was the registry hack? – Moab Oct 6 '11 at 14:48
    
Yes, it was the registry hack. Good thing it still exists. (Now I have the added bonus of a computer-universal iTunes, too!) – Ryan O'Hara Oct 6 '11 at 17:04

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