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Hi @claudiubotezatu 

Before proceeding, may I inquire which specific Trend Micro product you're referring to? Is it Trend Micro Maximum Security?

You may also Restart the Trend Micro components via Diagnostic Toolkit: 
1. Open the Trend Micro Diagnostic Toolkit.
2. Click the (C) Uninstall tab.
3. Click 5. Stop all Components.
4. Click 2 and 3 Delete Now

5. Wait for 30-60 seconds for the Trend Micro components to stop properly.
6. Click 4. Start all Components

Let us know how it goes.

Hi @mhasan1704 

Welcome to Trend Micro Community!

Please check the Task Manager if Trend Micro is consuming excessive amount of CPU or memory to cause this issue.

You can also Improve computer performance with PC Health Checkup

Hope this helps!

Hi @Repata

Welcome to Trend Micro Home Users Community!

Please make sure that you have the latest version of the Maximum Security which is 17.8. You can visit How to Update Trend Micro Security and Antivirus on Windows 

For isolation and for confirmation if Trend Micro is causing the issue, you may Temporarily disable protection on Windows and check if the issue persists.

Hope this helps!

Hi @lyndarothwell2013 

Can you provide more details about how you discovered that your network, including Trend Micro, has been hacked? What specific symptoms or signs of compromise are you experiencing?

For the meantime, visit this page How to tell if your device is hacked | Trend Micro Help Center