In Excel, click the File tab. Click Options > Trust Center > Trust Center Settings, and then click External Content. There is only one option: Always block the connection of untrusted Microsoft Query files (.iqy, .oqy, .dqy, and .rqy) Check this option if you want to block connections to Microsoft Query files.

Protect your PC from ransomware. Security Windows 7 Windows 8.1 Windows 10. Ransomware is malware that encrypts your files or stops you from using your computer until you pay money (a ransom) for them to be unlocked. If your computer is connected to a network the ransomware may also spread to other computers or storage devices on the network.

Windows 10. If you can’t connect to an Xbox multiplayer game on Windows 10, go to Settings > Gaming > Xbox Networking. Look for Server connectivity. If the status says Blocked, your PC was unable to establish a Teredo IPsec connection to the Quality of Service (QoS) server. If you also see Teredo is unable to qualify next to NAT type, visit ...

Scan with Windows Defender Offline. If the same malware keeps infecting your PC, use Windows Defender Offline to look for and remove recurring malware. Microsoft Defender Offline is a scanning tool that works outside of Windows, allowing it to catch and clean infections that hide themselves when Windows is running.

Screening downloads: SmartScreen checks your downloads against a list of reported malicious software sites and programs known to be unsafe. If it finds a match, SmartScreen warns you that the download has been blocked for your safety. SmartScreen also checks your downloaded files against a list of well-known and popular downloads by Microsoft ...

Overview. Microsoft has identified a compatibility issue with Microsoft's Windows security updates released in January 2018 and a small number of antivirus software products. The compatibility issue arises when antivirus applications make unsupported calls into Windows kernel memory. These calls may cause stop errors (also known as blue screen ...

To fix this, follow these steps: Click the Start button, then type Windows Firewall in the Search box. Click Windows Firewall, and then click Allow a program or feature through Windows Firewall. Click the Change settings button. If a User Account Control window appears, click Yes, or enter your user name and password, then click OK.

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

These protections include Hardware-enforced Stack Protection and Arbitrary Code Guard (ACG). With these protections in place, Microsoft Edge helps reduce the risk of an attack by automatically applying stricter security settings on unfamiliar sites while adapting to your browsing habits over time.

These images, sometimes called Web Beacons, can be used to track whether someone has read an email. External images are not a security threat. We allow users to turn off automatic loading of these images as an additional privacy protection. The Block external images setting will not block images that are embedded in the email as attachments ...