Fix Windows Security High Memory Usage (MsMpEng.exe)
You open Task Manager and see Windows Security (the process is MsMpEng.exe) using 500 MB or more ...
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You open Command Prompt, run a command, and get an 'access denied' error. This usually means the ...
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You try to send or receive email in Outlook and see an error: "Proxy authentication failed"
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If you notice that cmd.exe is using a lot of memory—sometimes hundreds of megabytes—it's usually ...
Windows Security Antivirus Not Detecting Threats: How to Fix
If you suspect Windows Security (formerly Windows Defender) is not detecting threats, you might s...