C: ACCESS IS DENIED.

[Britec]

Re-post, originally posted by Eagle.


Hi,
I accidentally lock my c drive.. Now i am unable to c drive look. Cannot see c drive value. Value is 0.
I cannot install any program or cannot uninstall it.
My local © drive under properties under security is I cannot see group or user names:

when special permissions or advanced setting click advanced says
you do not have permissions. C: drive is not accessible.
C: drive is access is denied.
Ok, what I did wrong is I have Norton internet security, I try to uninstall it.
I have revo uninstaller pro version. I use with revo uninstaller and ask me step by step uninstaller

ok, I did not notice they ask me so many time different, like registry value, like system file, etc and I click it.
Then I try click to reset my pc not work.
Then I try to reinstall pc not work.
Then I try to usb bootable with fresh install, but c drive access is denied. Not work.
Then I try gateway factory reinstall recovery management, but not work.
I am administrators on pc.
Please help Mr. Brain
Thank you in advance.

[DonaldSayers]

SORRY EAGLE, MR. BRIAN ACCIDENTALLY DELETED THE THREAD.  

Can you actually change the values in the registry still? Seems like somehow they got messed up, either by messing with them or possibly an infection.

[Britec]

Sorry Eagle I deleted you post by mistake, but I got a copy of it here.
Its not very clear what your trying to say...so I will take a guess and what I think it could be related to.

Sharing and Permissions I think your need to change permission, here is a guide on how to do that


Sharing and Permissions Guide


Let me know if I am on the right track.

[Britec]

It is possible to Change Ownership of any drive, folder, or file (Exceptions with some system files) by right clicking on it, select Properties, and then the Security Tab at the top.

 
It is also possible to modify permissions, and add a user with permissions. This may be good enough to solve your problem, but you may need to change OWNERSHIP...which I always do on my machine.
 
To add a user, right click on EDIT and select ADD....then
1) Advanced
2) Find Now
3) Select User from list...Your user name, or any you want to add.
 
　
Change Ownership and add OwnerName as a USER
 
Select Security Tab and then ADVANCED at the bottom.
Here you can edit the permissions for existing users and\or add another..
 
Click Owner Tab at the top and select the User (you) that you want to take Ownership.
If it is not on the list...
1) Edit
2) click Other Users or Groups
3) Advanced
4) Find Now
5) Select User from list...Your user name, or any you want to add.
6) check the box "Replace Owner On Subcontainers and Objects"
 
Now select the Permissions Tab
1) select "Change Permissions" near the bottom
2) select EDIT if the new owner is there...
ADD if not and steps 3-5 above
3) Give the new user\owner full permissions
4) check the box "Include Inheritable Permissions From This Object's Parent""
 
If the new OWNER doesn't appear on the 1st list you see after clicking the Security Tab now, use the first set of instructions to EDIT and Add a User.

Source

[Eagle]

(09-30-2014, 09:50 PM)Britec Wrote:  It is possible to Change Ownership of any drive, folder, or file (Exceptions with some system files) by right clicking on it, select Properties, and then the Security Tab at the top.

 
It is also possible to modify permissions, and add a user with permissions. This may be good enough to solve your problem, but you may need to change OWNERSHIP...which I always do on my machine.
 
To add a user, right click on EDIT and select ADD....then
1) Advanced
2) Find Now
3) Select User from list...Your user name, or any you want to add.
 
　
Change Ownership and add OwnerName as a USER
 
Select Security Tab and then ADVANCED at the bottom.
Here you can edit the permissions for existing users and\or add another..
 
Click Owner Tab at the top and select the User (you) that you want to take Ownership.
If it is not on the list...
1) Edit
2) click Other Users or Groups
3) Advanced
4) Find Now
5) Select User from list...Your user name, or any you want to add.
6) check the box "Replace Owner On Subcontainers and Objects"
 
Now select the Permissions Tab
1) select "Change Permissions" near the bottom
2) select EDIT if the new owner is there...
ADD if not and steps 3-5 above
3) Give the new user\owner full permissions
4) check the box "Include Inheritable Permissions From This Object's Parent""
 
If the new OWNER doesn't appear on the 1st list you see after clicking the Security Tab now, use the first set of instructions to EDIT and Add a User.

Source

---

first of all Thank you for quick replay.
as your guide i try but i am unable to do anything. like select security tab theb advanced at bottem-- i try and
object name: c:\
You must have read permission to view the properties of this object.
click advance to continu
then i click advance
name: C:\
owener: Unable to display current owner. CHANGE
then i click change
Windows Security
(x) Can't open access control editor.
Access is denied.

i try as much i can but always when i try to open C drive = C:\ IS NOT ACCESSIBLE ACCESS IS DENIED.
THANK YOU Again for HELP.

[Britec]

I know what you done, it looks like this:




What you have done is denied access to Administrators, when you try and change permissions you will get access denied 
it will be the same for these commands

Code:

icacls c: /grant Administrators:(OI)(CI)(IO)(F) /T /C
icacls c: /grant SYSTEM:(OI)(CI)(IO)(F) /T /C
icacls c: /grant Users:(OI)(CI)(GR,GE) /T /C

If you create a new Administrator account, you still wont be able to change it.
To create a Administrator account open elevated command prompt and type: net user username password /add (username is when your name is and password is what password you want)
Don't run TakeOwnership.
I will take a look later tonight, to see what you can do.

[Eagle]

Yes, maybe you right. i did wrong as you e-mail me. i am do nothing untill you tell me step by step what i do.
i think below chart is right, it look right. but righr now i can not see any group or user name.
i am waiting for your replay and Thank You for help.

[Britec]

You may have no choice but reformat the operating system .

[Eagle]

yes, Brain looks like i have no choice.ok
i am ready to reformat and reinstall the operating system.
so, please tell me how? step by step i will do it.
Thank you.

[Britec]

What is make and model number of your computer please and Do you have Windows DVD or Windows Recovery CD or Rescue Partition on the drive?

If its a Laptop you can find VN or PGN on the bottom of Laptop



Finding the PN or VGN on your laptop