Renaming Default Domain and Default Domain Controller Policies

Hello, I am trying to troubleshoot slow logon issues with a Windows 2008 R2 Domain. I noticed that both the default domain policy and default domain controller policy have been renamed to Default Domain PolicyDONOTMod and Default Domain Controller PolicyDONOTMod respectively. These policies have also been modified. Should I be renaming these policies back? Are they OK renamed? Should I use the GPOfix tool to repair the policies? Thanks in advance.
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snusgubbenConnect With a Mentor Commented:
The GPOs are referred to with its GUID and not friendly name, so I doubt it's the renaming that is the problem.

Here are some great blog entries about the subject:

JamesSenior Cloud Infrastructure EngineerCommented:
To narrow down the root cause:

 1.     Login your DC, open Group Policy Management in the Administrative Tools

2.     Verify whether the problematic GPO is configured correctly.

3.     Run "rsop.msc" on the DC to check whether the problematic GPO is applied correctly.

4.     Go to Group Policy Results, right click it and chose Group Policy Results Wizard, select target server name and user name which you are going to deploy GPO.
njtreker1Author Commented:
I have disabled the suspected GPO and have discovered a dramatic improvement in the logon performance. My main question is whether it is OK to have the default policies renamed.
It's a best practice to leave the default domain policy and default domain controller policy alone, but as I said they are not applied with the friendly name. If you look in the userenv.log on i.e. a XP machine the GUID to the GPO is used.

The GUID is not changed if you rename the friendly name.

If you run a RSOP or gpresult the friendly name is reported (in a friendly reading report).
Darius GhassemConnect With a Mentor Commented:
I would have to agree you really want to leave your default domain policy alone you should make changes to new polices that you add. The Default Domain Controller Policy I would 100% leave alone do not rename this policy this is a critical policy to your domain controllers.
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