Error 5: Access Denied is a known issue in Windows 10. This error prevents the installation of software on the computer and the access or modification of certain files.
What Causes Access Denied Error Issues 5?
The reason for this problem is the unavailability of the permissions. Windows 10 will prevent it from installing if you do not have the administrator privileges or if your account is not the administrator account.
Obtaining administrator privileges for your account on the computer solves this problem.. But before continuing, temporarily disable your antivirus program and see if this makes any difference. If so, it probably means that Antivirus was the culprit. Otherwise, you can proceed to the solutions below and activate Antivirus later.
How to correct the error 5 Access denied?
Method 1: fix temp folder security permissions
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Press the Windows key once and click File Explorer
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Scribe
in the address bar at the top center of File Explorer and press Enter
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Find the Temp folder and right click on it and then select Properties
Open the properties of the Temp folder
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Click on the Security tab and then Advanced
Click Advanced on the Security tab.
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Check if Replace all child object permissions with inherited permissions for this object is checked. If that is not the case, check it and click continue.
Check the option “Replace all child object permissions with inherited permissions for this object”.
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Now select any input that is not inherited from C: Users[Username] folder and click Delete
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Click Apply and then click OK
Method 2: get admin privileges
Make sure you have administrator privileges before attempting to run the installation. To do this, right click on the setup program you are getting the problem in and select Run as administrator.
Method 3: make your profile an administrator
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Hold down Windows Type and press R
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Type netplwiz and hit Enter
Run the netplwiz command
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Select the user you want to be the administrator of the PC
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Click Properties
Change user properties
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Click on the Group Membership tab
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Click on Administrator and click Apply. Then click OK

Method 4: move the installer
If you get the error in a specific installer, copy or move it to drive C or whatever drive Windows is installed on and try to run it. This should solve the problem..
Method 5: enable the built-in administrator account
Basically, when you install windows 10, Windows creates 2 additional accounts for yourself. One of them is a guest account and the other is an administrator account. Both are inactive by default.
You can verify the account by performing the following steps
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Hold down the Windows key and press X (release the windows key). Press Command Prompt (Administrator)
Open command prompt (administrator)
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Type net user and hit Enter

The main difference between the administrator account and the built-in administrator account is that the built-in administrator account has full and unrestricted access to your computer. Therefore, enabling the built-in administrator account can come in handy when you have privilege issues in Windows 10.
Here are the steps to enable the built-in administrator account.
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Hold down the Windows key and press X (release the windows key). Press Command Prompt (Administrator)
Open command prompt (administrator)
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Enter network user manager / active: yes and press enter. You should see a Command executed successfully message.
Run the network user manager / active: yes at the command prompt
It is always good to protect administrator accounts with a password to prevent people from making changes to the PC.
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Type network user administrator and press Enter (you should type the password you want to set for the administrator account instead of)
O
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Enter network user manager * and press Enter. You will be asked twice to enter the password you want to set for the administrator account. Just type your password and hit Enter

Now try running the program and there should be no problem. If you want to disable the administrator account, follow next step
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Hold down the Windows key and press X (release the windows key). Press Command Prompt (Administrator)
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Escriba net user administrator / active: no and press Enter.

Method 6: adjust UAC settings
This step is not recommended as it will make your system vulnerable to many threats. There are some applications that are not supported or conflict with UAC settings (User account control). Disable UAC (to minimize UAC interference with application installation and folder access) can solve the problem. UAC is the primary security firewall that prompts for a password or authentication when the software is installed or running.
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Press the Windows key, type UserAccountControlSettings and, in the results, click UserAccountControlSettings.
Abra UserAccountControlSettings
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Now, in the User Account Control Settings window, set the slider to Never notify and then click OK.
Set the slider to Never notify
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Now install the app or take the action you were trying to complete.
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Open the properties of the Temp folder
Click Advanced on the Security tab.
Check the option “Replace all child object permissions with inherited permissions for this object”.
Run the netplwiz command
Change user properties
Open command prompt (administrator)
Run the network user manager / active: yes at the command prompt
Abra UserAccountControlSettings
Set the slider to Never notify



