Windows 7: Accidentally removed permission for authenticated users

Hi,

I recently installed windows 7 32 bit and was browsing thru security settings for my drive D (partition). i accidentally removed permission for 'authenticated users', and now getting error "access is denied" for this drive, and I'm using the enabled admin account in windows 7.

All my important files are stored on this drive and need your help accessing them badly.

Your assistance will be appreciated.

This is not the same thread?
accidentally removed permission for authenticated user for drive d:

Hi,

Log into your Administrator account:

1. Right click your "D" drive and go to Properties.
   Choose "security" tab
   Click on "Advanced"
   
2. Click "Change Permissions"
   
3. Click "Add"
   
4. Write " Authenticated " and press Check names ( It should find right group)
   Click OK
   
5. Tick needed permissions for allow:
   • Traverse folder / execute file
   • List folders / read data
   • Read attributes
   • Read extended attributes
   • Create file / write data
   • Create folders / append data
   • Write attributes
   • Write extended attributes
   • Delete
   • Read permissions
   
   Click OK

Continued on next post:

6. Tick option "Replace all child object permissions"
Click OK
It should now go through and replace all permission and give appropriate permission to Authenticated users