Remote desktop without a password

Yes, this is possible. By default, #Windows will not allow the logon over a network with a blank password. There is a KB article that details how to allow blank passwords for network logons. You can disable blank password restrictions by using a policy. To locate and change this policy:

1. Click Start, point to Run, type gpedit.msc, and then click OK to start the Group Policy Editor.
2. Open;

• Computer Configuration
• Windows Settings
• Security Settings
• Local Policies
• Security Options
• Accounts: Limit local account use of blank passwords to console logon only.

1. Click Disabled, and then click OK.

Quit Group Policy Editor NOTE: By default, this policy is on (enabled). Under the cover, in Registry, this is controlled by

[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa]
"LimitBlankPasswordUse"=dword:00000000
 Therefore, alternatively, this can be achieved by directly setting 

LimitBlankPasswordUse to ``. Setting it to 1 will restore the default behavior.