Windows Defender Cannot Be Activated After Uninstalling Comodo Anti Virus– Help Needed (Windows 10)
Hello Community, I’m experiencing a problem with my Windows 10 laptop and hope to get some guidance. Official support is no longer available for my system, so I’m turning to the community for help. Problem Comodo Anti Virus /Internet Security / Internet Security Essentials had been installed on my laptop for a long time. While Comodo was active, I could not load certain websites properly, and games like League of Legends would not run. For this reason, I recently uninstalled Comodo. After the uninstallation, the previously blocked websites and games work again. Current issue: My Windows Defender Antivirus cannot be activated. In Windows Security, it shows: “Virus & threat protection: Action required” “The threat service has stopped. Start it now” Clicking “Start now” only shows a loading indicator and then an “An unexpected error has occurred” message. I have administrator rights, but Defender still cannot be activated. Steps I’ve Tried 1. Registry checks Path: HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender Checked entries like DisableAntiSpyware and DisableRealtimeMonitoring Modifications often failed → access denied 2. PowerShell commands Set-MpPreference -DisableRealtimeMonitoring $false → errors: “Parameter not found” or “Access denied” Other commands like Set-ItemProperty or Set-Content → errors: “UnauthorizedAccessException” or “InvalidArgument” 3. CMD / SC commands sc config WinDefend start=auto Error: “SC Open Service Error 5 – Access denied” 4. Service check Get-Service WinDefend | Select-Object Status, StartType → Status: Running, StartType: Automatic Despite the service running, Defender cannot be enabled in Windows Security 5. System restore point created (For Comodo Revomal Tool) Drive C: protection enabled Backup created as a precaution Insights / Analysis (Speculations) After uninstalling Comodo, websites and games work again → this suggests that Comodo previously installed network filters or drivers that blocked them. It is possible that remnants of Comodo (drivers, services, registry entries) are preventing Windows Defender from starting. Firewall, App & Browser protection, and Exploit protection are active → partial protection, but Defender is not functional. I am not certain if there are other causes, but based on my experience, it seems strongly related to leftover Comodo components. Has anyone experienced similar issues where Defender remains blocked after uninstalling Comodo? Are there safe methods to fully reactivate Defender without risking system stability? Should I use the official Comodo Removal Tool to remove all remnants? Are there alternative steps to try before using a removal tool? I would greatly appreciate any guidance, tips, or steps I can try to get Windows Defender working again. Thank you in advance!Performance Issues on Convertible Laptop — Need Suggestions
Hi everyone, I’ve recently started using a convertible laptop for work and creative tasks. It’s been fantastic for switching between productivity work, streaming, and sketching in tablet mode. However, I’m running into some performance challenges, especially when multitasking or working with heavy creative applications. Even though my device has an https://www.lenovo.com/in/en/d/i7-laptops/, I’ve noticed occasional slowdowns and faster-than-expected battery drain when switching between tasks. I’ve already tried tweaking the power settings and disabling unnecessary background apps, but the issue persists. I came across the Microsoft Tech Community while searching for solutions and thought I’d ask for help here. Are there any specific settings or optimizations to improve performance on a convertible laptop? I’m also curious if there are tools that can help manage resources better or boost system efficiency. Thanks in advance for your suggestions!
When is Microsoft going to bring Microsoft Authenticator windows aka desktop or within edge itself?
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