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Windows 7: hku/s-1-5-21-2117891135-820165737-679121223-1000_classes ?

02 Jul 2013   #1
HalloGARYween

Windows 7 Ultimate
 
 
hku/s-1-5-21-2117891135-820165737-679121223-1000_classes ?

I dont know what this means. . . and i really dont know too much about computers but I'm starting to learn. thanks guys




Attached Thumbnails
hku/s-1-5-21-2117891135-820165737-679121223-1000_classes ?-capture.png  
My System SpecsSystem Spec
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02 Jul 2013   #2
cottonball

Windows 7 Home Premium
 
 

HalloGARYween,

Registry file UsrClass.dat is loaded at HKU\s-1-5-21-*-1000_Classes is a tough issue, since it deals with Registry hives...

There may be an advisor here qualified to deal with this problem, so, will check around and let you know.

In the meantime, please do the following:

Go to Start > All Programs > Accessories > Command Prompt
Right-click the Command Prompt and select: Run as Administrator

After the prompt to the right of C:\Windows\System32>
Copy and then paste all of the following commands contained inside the code box below, and press: Enter

Code:
REG QUERY HKU
REG QUERY HKU\S-1-5-21
REG QUERY "HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileList\S-1-5-21"
REG QUERY HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\hivelist
To obtain the results of the query, please click on the small command prompt icon on the top left.
Select: Edit > Select All

After the info is highlighted (turns white), go back to the same icon on the top left, and select:
Edit > Copy

Next, open Notepad (Start > All Programs > Accessories > Notepad)
Paste the info to Notepad, and post it in your reply.


Also, please go to Start > Control Panel > System and Security > System
Scroll down to a section called: Windows Activation
Use the Snipping Tool to obtain a capture of the info, however, block out the Product ID.

Please provide the capture in your reply.

Thanks!
My System SpecsSystem Spec
02 Jul 2013   #3
Alejandro85

Windows 7 Ultimate x64
 
 

If the question is directed at what that key means.....

All the HKEY_USERS contains all the per-user data that the registry holds. All those rare numbers are just an internal identification number that Windows uses to track each user (this is called a SID, or Security IDentifier).
Furthermore, the registry key HKEY_CURRENT_USER is just a sort of "shortcut" to those that contain some user-specific data and configuration of the current user, but really it's just fetching that data from HKEY_USERS/S-1-21-********/whatever.

The event itself don't seems anything special to me at first glance (maybe I'm wrong), but it's just telling that a file was loaded, requested by that particular registry key. There are thousands of occasions where this is perfectly normal (and required, in fact).
My System SpecsSystem Spec
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02 Jul 2013   #4
cottonball

Windows 7 Home Premium
 
 

Please note Edit in the code box of Post #2.

Dealing with Registry hives is beyond me. Don't know if there is really an issue here or not;
Registry file C:\Users\*\AppData\Local\Microsoft\Windows\\UsrClass.dat is loaded at HKU\S-1-5-21-*-1000_Classes

Called an Expert for help.

Thanks for your patience.
My System SpecsSystem Spec
02 Jul 2013   #5
HalloGARYween

Windows 7 Ultimate
 
 

And thank you as well! I also dont know what hives are; or a hiveslist and whatnot. . Gah-ugh
My System SpecsSystem Spec
03 Jul 2013   #6
NoelDP

Microsoft Community Contributor Award Recipient

Win 7 x64 Home Premium (and x86 VirtualBox VM)/Win10
 
 

That entry in the Event Viewer is perfectly normal.

The Registry is a complex database which Windows loads from a number of different sources at boot, depending on the environment, and the user profile.
It's best left well alone unless you know what you're doing - and specifically, AVOID use of any Registry 'Cleaners' or 'Optimisers', as they are all snake-oil products designed to lighten the wallet, rather than anything else.

The specific entry you have opened there tells us that the registry has loaded User data from a location in the user profile's AppData folder to the User's area of the registry - in this case we can see that the user is the first one created after the machine was installed ( see the -1000 and the end of the HKU string?)
If you have any other user accounts on the machine, they will have the same HKU ID string, apart from the final part, which is incremented by one for each user created, and never reused, even if the user is later deleted and re-created with the same name. It's these ID's which the machine uses for all security purposes, rather than the user name itself.

HTH?
My System SpecsSystem Spec
03 Jul 2013   #7
HalloGARYween

Windows 7 Ultimate
 
 

Hey thanks dude. I was given this laptop, which i dont know anything about and it has some problems that im trying to figure out how to fix, hopefully, before school starts.

What does HTH stand for?
My System SpecsSystem Spec
03 Jul 2013   #8
VistaKing

Windows 7 Ultimate 32-Bit & Windows 7 Ultimate 64-Bit
 
 

HTH means Hope This Helps I believe .
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04 Jul 2013   #9
HalloGARYween

Windows 7 Ultimate
 
 

1st pic


Attached Thumbnails
hku/s-1-5-21-2117891135-820165737-679121223-1000_classes ?-hivelist-shot.png  
My System SpecsSystem Spec
04 Jul 2013   #10
HalloGARYween

Windows 7 Ultimate
 
 

2nd Pic


Attached Thumbnails
hku/s-1-5-21-2117891135-820165737-679121223-1000_classes ?-no-system-security.png  
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