Microsoft Security Essentials Help
What's new in Microsoft Security Essentials?
Why do I need antivirus and antispyware software?
How can I tell if my computer is infected with malicious software?
What should I do if Microsoft Security Essentials detects malicious software on my computer?
Using Microsoft Security Essentials to remove potentially harmful software
Frequently asked questions about malicious software
How to help prevent malicious software infections
Understanding alert levels
What are recommended actions?
Applying default actions to detected items
Scanning for viruses, spyware, and other potentially unwanted software
When is the best time to run a scan on my computer?
Responding to potential threats after a scan
How can I view a scan's progress?
What are advanced scanning options?
Excluding items from scans
What's real-time protection?
Understanding real-time protection options
Turning real-time protection on and off
How do I know that Microsoft Security Essentials is running on my computer?
How to set up Microsoft Security Essentials alerts
What are virus and spyware definitions?
How do I keep virus and spyware definitions up to date?
Running a scan using the latest updates
How do I remove or restore items quarantined by Microsoft Security Essentials?
How do I add or remove items from the Microsoft Security Essentials allowed list?
How do I view or clear the history in Microsoft Security Essentials?
What if I want to download or run a program that Microsoft Security Essentials detects as potentially harmful?
Privacy settings for detected items
What is the Microsoft SpyNet Community?
Reporting suspicious software to Microsoft SpyNet
Changing your Microsoft SpyNet community membership
Where can I find the Microsoft Security Essentials privacy statement?
Where can I find the Microsoft Security Essentials license agreement?
Troubleshooting common issues
I can't install Microsoft Security Essentials
How do I uninstall antivirus or antispyware programs?
Troubleshooting Windows validation issues
How do I download and install Microsoft Security Essentials?
Troubleshooting real-time protection issues
Troubleshooting update issues
I can't start the Microsoft Security Essentials service
I can't download Microsoft Security Essentials
I can't connect to the Internet issue (General topic)
Error “0x8*******” encountered while virus and spyware definition updates or product upgrades
My computer runs slowly after installing Microsoft Security Essentials
How to submit a case online
Microsoft Security Essentials detects a threat but can't remediate it
Dynamic Signature Service
Virus and spyware definitions