Windows Defender error 5. Windows 1. 0Why did error 5. Windows could not start the Windows Defender service on Local Computer. Error 5. 77 Windows cannot verify the digital signature for this file You might have seen this error message when trying to launch Win Defender. Once you get it running, Windows 10 provides a slick new look to your Windows 7 machine but getting. Disabling Windows Defender. The easiest way of disabling Defender is through the program itself. Click Start, in the search box type Windows Defender and when. Why did error 577 occur and how to get rid of it Windows could not start the Windows Defender service on Local Computer. Error 577 Windows cannot verify the. If you want to minimize connections from Windows to Microsoft services, or configure particular privacy settings, this article covers the settings that you could. How to use Group Policy to turn off Backup Notification in the Windows 7 Action Center The Easier Way. How to Turn On or Off Windows SmartScreen in Windows 8 and 8. Information What this feature does Windows SmartScreen, like t. Most of the time fixing error 5. Windows Defender is an antivirus and anti spyware utility that comes with Windows OS. In Windows 7 and earlier versions of Windows it used to have anti spyware functions only and could run alongside third party AVs, but in Windows 8 it has become a full fledged antivirus. When another AV is installed, Defender gets turned off so the two wont impede each others work. Cannot Turn Off Windows Defender Windows 7' title='Cannot Turn Off Windows Defender Windows 7' />Solution to the error Windows cannot access the specified device, path, or file. You may not have the appropriate permission to access the item. Windows 10 Tip Disable Data Collection and Telemetry in Windows Defender The most popular and talked about feature of Microsofts latest operating system Windows. I cannot uninstall Windows Defender, as it is not listed in the program list and the. I cant do it manually, either. I tried. One other reason for Defender getting shut off is malware damaging some related files or changing Registry settings. Fast Automatic Solutions The best and easiest way to fix Windows Defender error 5. PC Health Advisor. It will scan your computer for system errors and issues. PC Health Advisor has wide range of solutions to most of the system problems, including Windows Defender error 5. Install it and run the scan, then watch it fixing your systems issues. Download PC Health Advisor. Another proper program that is able to fix Windows Defender error 5. Reg. Cure. This application is designed to quickly and powerfully clean your Windows registry, boosting your computers performance. There are a lot of optimization tools in Reg. Cure, give it a try. Download Reg. Cure. Or fix error 5. 77 in Windows 1. Win Defender manually if it wont start automatically. Get rid of malware. Some malicious programs can disable AVs, including Win Defender, in order to avoid detection and removal. If that is what happened, eliminating malware is the first thing you need to do. Download and run a powerful anti malware utility or several. Uninstall third party anti malware. This concerns antivirus programs mostly, but other security software, like some anti spyware, have been reported to cause Windows Defender error 5. Press Windows key X key. Select Control Panel Programs Programs and Features. Look for the AV, highlight it and click Uninstall. Reboot and try to launch Win Defender. If this havent eliminated error 5. Find and delete all remaining files, folders, Registry settings related to it or use an app removal tool. Revo Uninstaller is one such tool, and on a Microsoft Community you can find more of those. Launch Defender via Services. Click Start. Type services. Enter. Locate Windows Defender Service in the table, right click on it and click Start. Activate Win Defender through Update Security. Click Start. Open Settings Update Security Windows Defender. Turn real time protection on. If the above approaches didnt help you to get rid of error 5. Run System File Checker to restore corrupted system files. Press Windows key X key. Click Command Prompt Admin. Type sfc scannow and hit Enter. Wait until the process completes. If some defective files have been detected but could not be restored, type dism Online Cleanup Image Restore. Health and press Enter this step requires an active Internet connection to access Microsoft servers. Wait for the procedure to finish and repeat step 3. Exit Command prompt, reboot the PC. Correct Windows Registry settings. An AV or a sneaked in malware might have modified the settings to disable Windows Defender. Doing any changes in the Registry manually is risky, as a mistake might have harmful consequences for your system, which is why we advise you to make a backup of the Registry before altering anything. Click Start. Type regedit and hit Enter. Create a Registry backup Click File Export. Enter file name, select All under Export range, choose the location. Click Save. On the left panel expand the keys HKEYLOCALMACHINE SOFTWARE Microsoft. Highlight Windows Defender. On the right panel double click Disable. Antivirus entry and change its value data to 0. Do the same with Anti. Spyware entry. Note If you are not allowed to make changes, do the following first and go back to steps 5 and 6 On the left panel right click Windows Defender, select Permissions Advanced. Next to Owner click Change. Type your Windows username, click OK. Click Add Select a principal. Type your username, click OK. Put ticks in Full Control and Read checkboxes. Click OK in every remaining window. On the left panel expand the keys HKEYLOCALMACHINE Software Microsoft Windows NT Current. Version. Click on Image File Execution Options. Delete any entries mentioning the words MSASCui. Mp. Cmd. Run. exe or Ms. Mp. Eng. exe. Exit Registry Editor and restart the PC. Change the security permissions in your Registry. Windows Defender error 5. In order to solve the problem you may change the security permissions of specific keys in registry. To do so, take following steps. Open Registry Editor. Navigate to HKEYLOCALMACHINESOFTWAREMicrosoftWindows Defender key. Right click on the key and select Permissions option. Choose the Advanced button. Click on the Add button. Choose Select a principal. In the Enter the object name to select field type in user name and click Check Names. Select OK to save changes. You can see your username in the Principal section. In Basic permissions section tick the box on Full Control and click OK to save changes. Choose Enable Inheritance button. Microsoft Ergonomic Keyboard 7000 India. Click Apply and OK. Restart Security Center and Windows Defender service. In some cases Windows Defender error 5. Security Center. To restart Security Center, follow the instruction. Press Windows R. Type services. Enter. Search for Security Center service. Right click on it and select Restart. Restore the system to an earlier time. System restore provides you with the means of rolling your system back to one of the previously saved restore points. That is, if you have this tool enabled which is always a good idea. In that case restore points are automatically created before any change in the system, such as software installation, is made. After using System Restore installed programs and system settings will revert to the state they were in on a saved point in time user files wont be affected. Press Windows key X key, then click Control Panel. Select Recovery Open System Restore. In System Protection tab click System Restore and then follow the programs directions. We hope this guide was helpful to you, and you were able to start Win Defender again. Feel free to leave a comment and tell us what steps were or werent effective in your case.