Troubleshoot screen flickering in Windows

Try running these network commands to manually reset the TCP/IP stack, release and renew the IP address, and flush and reset the DNS client resolver cache:

1. Select Search on the taskbar, and type command prompt. The Command Prompt button will appear. To the right of it, select Run as administrator > Yes.

2. At the command prompt, run the following commands in the listed order, and then check to see if that fixes your connection problem:

   • Type netsh winsock reset and select Enter.

   • Type netsh int ip reset and select Enter.

   • Type ipconfig /release and select Enter.

   • Type ipconfig /renew and select Enter.

   • Type ipconfig /flushdns and select Enter.

What if Windows keeps booting in Safe Mode? 

Restarting your device should be sufficient to exit from Safe Mode back into normal mode. However, if for some reason your device is still booting into Safe Mode, try this:

1. Press the Windows key + R

2. In the Open box, type msconfig and then select OK

3. Select the Boot tab

4. Under Boot options, clear the Safe boot checkbox

Checking your version

Follow these steps to use the DirectX Diagnostic Tool to check your DirectX version:

1. In the Search box on the toolbar, enter dxdiag. Then select dxdiag from the list of results.

2. In the DirectX Diagnostic Tool, select the System tab, then check the DirectX version under System Information.

Note: The first time you use the DirectX Diagnostic Tool, you might be asked whether you want to check if your drivers are digitally signed. We recommend that you select Yes to help ensure that your drivers have been signed by a publisher that has verified their authenticity.

AdGuard blocks network access

If network becomes unavailable after you enable AdGuard protection, try doing the following:

If you have DNS protection enabled, switch to a different DNS server and/or protocol in Protection (second icon from the left in the bottom row) → DNS protection → DNS server.

If the previous advice didn’t help, try disabling DNS protection completely.

Go to Settings (right-most icon in the bottom row) → General → Advanced → Low-level settings and enable Restore VPN automatically.

AdGuard Browser Extension is a free extension that works in five popular browsers: Chrome, Firefox, Edge, Opera, and Yandex Browser. You can easily find it in your browser’s online store or on adguard website.

Open the command line on your computer. On Linux, use the keyboard shortcut Ctrl+Alt+T. On Mac, type Terminal in the search field.

To install AdGuard, choose the version that better suits you (release, beta, or nightly) and enter the respective command.

Release:

curl -fsSL https://raw.githubusercontent.com/AdguardTeam/AdGuardCLI/release/install.sh | sh -s -- -v

Beta:

curl -fsSL https://raw.githubusercontent.com/AdguardTeam/AdGuardCLI/beta/install.sh | sh -s -- -v

Nightly:

curl -fsSL https://raw.githubusercontent.com/AdguardTeam/AdGuardCLI/nightly/install.sh | sh -s -- -v

You’re locked out. If a hacker gets ahold of your login credentials, they may change your password so that you can’t access your account anymore.

Your device is working differently. Does your computer or mobile device feel like it’s changed out of nowhere? Have you noticed different passwords, drastically altered settings, new files, or strange changes to files you already had?

Your browser is misbehaving. There are a lot of hacking tricks that work via your browser. Involuntary redirects — when you try to go to one page but are taken to another instead, without intending to go there — are a good sign that there’s something shifty going on. Also look out for toolbars and extensions that you didn’t add yourself. Lots of those occurrences are malware-based.

1. On your computer keyboard, press the Windows key and R at the same time to open the Run dialog box.

2. Copy or type wsreset.exe into the box then select OK.

3. Press the Windows key and R again.

4. This time copy the text below and paste it into the dialog window, then press OK.

%localappdata%\Microsoft\OneDrive\onedrive.exe /reset

5. If you see a "Windows cannot find..." message, copy and paste the text below instead, then press OK.

C:\Program Files\Microsoft OneDrive\onedrive.exe /reset

6. If you still see a "Windows cannot find..." message, copy and paste the text below instead, then press OK.

C:\Program Files (x86)\Microsoft OneDrive\onedrive.exe /reset

7. Manually restart OneDrive by going to Start , type OneDrive in the search box, and then click on the OneDrive desktop app.