Why Blocker Web May Require Administrator Permission

Blocker Web may require administrator permission because some of its features need to change protected Windows files and system settings.

Windows normally prevents standard applications from modifying these areas without approval. Running Blocker Web as an administrator gives it the access needed to apply and remove website-blocking rules correctly.

What Does Blocker Web Need Administrator Access For?

Administrator permission may be required for the following features:

• Adding websites to the Windows hosts file
• Temporarily disabling blocked website entries
• Removing websites from the hosts file
• Restoring or resetting the hosts file
• Creating Internet Lock firewall rules
• Removing Internet Lock firewall rules
• Refreshing the Windows DNS cache
• Starting the optional custom blocked website page

Some features may still open without administrator access, but they may not work correctly.

Modifying the Windows Hosts File

Blocker Web uses the Windows hosts file to block individual websites.

The hosts file is stored inside a protected Windows folder:

C:\Windows\System32\drivers\etc\hosts

Windows usually requires administrator permission before an application can make changes to this file.

Blocker Web needs access to the hosts file when you:

• Add a website
• Remove a website
• Turn website blocking on
• Turn website blocking off
• Restore the hosts-file backup
• Reset the hosts file

Without the correct permission, the website may appear in the Blocker Web list but might not be blocked successfully.

Creating Internet Lock Firewall Rules

The Internet Lock feature uses Windows Firewall rules to block common web traffic.

Administrator access is required because Blocker Web needs to create or remove firewall rules on the computer.

When Internet Lock is enabled, Blocker Web creates rules that block:

• TCP web traffic using ports 80 and 443
• UDP traffic using port 443, which is commonly used for QUIC connections

When Internet Lock is disabled, Blocker Web removes the rules it created.

Windows does not normally allow standard applications to change firewall rules without administrator permission.

Refreshing the Windows DNS Cache

When website blocking is turned on or off, Blocker Web attempts to refresh the Windows DNS cache.

This helps Windows and your web browser recognise changes to the block list more quickly.

Without refreshing the cache, a website may continue loading temporarily because Windows or the browser still remembers an older address.

The DNS refresh command may require administrator approval.

Displaying the Custom Blocked Page

Blocker Web includes an optional custom page that can appear when someone attempts to visit a blocked website.

To provide this page, Blocker Web starts a small local web server on the computer.

Starting a service on the standard web port may require administrator permission. If Blocker Web cannot start the local server, the website may still be blocked, but the browser may display its own connection error instead of the Blocker Web message.

What Is Limited Mode?

If Blocker Web cannot access the hosts file or start the custom blocked-page service, it may display a Limited Mode warning.

Limited Mode means that one or more features could not access the Windows settings they require.

You may encounter Limited Mode if:

• Blocker Web was not opened as an administrator
• Security software prevented access
• Another program is using the required local web port
• The hosts file is locked or unavailable
• Windows Firewall settings could not be changed

Closing Blocker Web and reopening it as an administrator may resolve the issue.

How to Run Blocker Web as an Administrator

To open Blocker Web with administrator permission:

1. Close Blocker Web completely.
2. Find the Blocker Web shortcut or application file.
3. Right-click it.
4. Select Run as administrator.
5. Select Yes when Windows asks for permission.

Blocker Web should then reopen with elevated access.

Always Run Blocker Web as an Administrator

You can configure Windows to request administrator permission each time Blocker Web is opened.

1. Right-click the Blocker Web shortcut or application file.
2. Select Properties.
3. Open the Compatibility tab.
4. Enable Run this program as an administrator.
5. Select Apply.
6. Select OK.

Windows will show an administrator approval message whenever the program starts.

Is It Safe to Allow Administrator Permission?

Administrator permission gives Blocker Web access to protected Windows settings, so you should only allow it for a copy downloaded from an official ComputerSluggish or Blocker Web source.

Blocker Web uses this access to manage:

• Its website-blocking entries
• Internet Lock firewall rules
• The DNS cache
• Hosts-file recovery options
• The optional local blocked page

Blocker Web also attempts to create a backup of the hosts file before changes are made.

What If I Do Not Allow Administrator Permission?

You may still be able to open Blocker Web, but some features may fail.

Possible problems include:

• Websites not being blocked
• Websites remaining blocked after disabling blocking
• Internet Lock not turning on or off
• The custom blocked page not appearing
• Hosts-file recovery tools failing
• A Limited Mode warning appearing

For the most reliable results, run Blocker Web as an administrator.