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34 Terms
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Blue Screen of Death (BSOD)
Critical Windows error that can result from driver issues, RAM problems, corrupt files, overheating, storage failures, or BIOS issues. Record the STOP code, boot into Safe Mode, and review Event Viewer logs.
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Degraded Performance
Slow system performance caused by insufficient resources, low disk space, or aging hardware. Optimize drives, free disk space, and evaluate hardware upgrades.
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Boot Issues
Problems such as endless reboot loops, black screens, or being stuck on the manufacturer logo. Disconnect external devices, use WinRE, run Startup Repair, rebuild boot records, verify BIOS boot order, and test storage health.
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Services Not Starting
Services fail to launch due to disabled dependencies, corrupted configurations, or permission issues.
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USB Controller Resource Warnings
Occur when too many high-bandwidth USB devices exceed controller limitations.
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System Instability
Random freezes, crashes, or unresponsiveness. Use sfc /scannow, perform hardware diagnostics, conduct a clean boot, review Reliability Monitor, update drivers, and repair or reinstall Windows if necessary.
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Time Drift
Incorrect system time that can cause authentication failures and Kerberos issues. Often caused by CMOS battery failure or NTP synchronization problems. Verify time zone settings, Windows Time Service, and NTP configuration.
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App Fails to Launch
Force close the app, restart the device, verify available storage, clear cache, check permissions, update, or reinstall the application.
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App Fails to Close
Force stop the application, clear cache and temporary files, check for updates, and reboot the device.
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App Fails to Update
Verify internet connectivity, available storage, clear cache, sign out and back into the app store account, and restart the device.
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NFC Issues
Ensure NFC is enabled, remove thick phone cases, position devices correctly, and verify payment application settings.
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Screen Does Not Auto-Rotate
Confirm auto-rotate is enabled, restart the device, test sensors with diagnostic tools, and boot into Safe Mode on Android if necessary.
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Developer Mode
Device setting intended for development that may expose devices to USB debugging attacks, unauthorized access, and increased malware risk.
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Root Access / Jailbreaking
Removes built-in security protections and increases exposure to malware and unauthorized access.
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Application Spoofing
Fake applications that imitate legitimate apps to steal credentials, financial information, or personal data.
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High Network Traffic
Excessive data usage that may indicate malware or unauthorized activity. Check data usage statistics, identify high-usage apps, disable background data, and perform malware scans.
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Degraded Response Time
Sluggish device performance often caused by excessive CPU or memory usage, malware, or insufficient storage.
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Data Usage Limit Notification
Alert indicating high mobile data consumption. Review app usage, disable unnecessary syncing, and remove suspicious applications.
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Limited or No Connectivity
Network connectivity issues. Toggle Airplane Mode, reset network settings, remove unknown VPNs or proxy apps, and test alternate networks.
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High Number of Ads
Excessive advertisements often caused by adware. Remove recently installed apps, browser extensions, and scan for malware.
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Fake Security Warnings
Fraudulent alerts designed to trick users into installing malware or revealing information. Do not click links; close the browser, clear cache, and scan for malware.
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Unexpected Application Behavior
Unusual app actions that may indicate compromise. Review account activity, change passwords, remove suspicious apps, and check permissions.
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Leaked Personal Files/Data
Potential data breach or malware infection. Disconnect from the network, change passwords, review account access logs, remove malicious apps, and perform a full malware scan.
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Unable to Access Network
Verify physical connections, restart networking equipment, check IP configuration, renew the IP address, flush DNS cache, review proxy settings, and scan for malware.
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Desktop Alerts
Pop-up warnings that may originate from legitimate software or malware. Identify the source, review browser notification permissions, inspect installed applications, and run anti-malware scans.
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False Antivirus Alerts
Fake security warnings claiming antivirus protection is disabled or threats exist. Verify installed antivirus software, inspect Task Manager for suspicious processes, and scan with trusted security tools.
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Altered System or Personal Files
Files modified without authorization. Disconnect from the network, review audit logs if available, scan for malware, and identify unauthorized accounts or processes.
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Missing or Renamed Files
Files that disappear or change names due to malware, accidental deletion, or user error. Check the Recycle Bin, reveal hidden files, search for unusual file extensions, and scan for malware.
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Inability to Access Files
Access failures caused by permissions issues, ransomware, or file corruption. Verify NTFS permissions, check for ransomware indicators, run CHKDSK, and test access using another account.
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Unwanted Notifications Within the OS
Excessive or suspicious notifications generated by applications or browsers. Review notification settings and remove suspicious software.
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OS Update Failures
Problems installing operating system updates. Verify update services, run update troubleshooters, check available disk space, and run sfc /scannow.
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Certificate Warnings
Security warnings indicating certificate validation problems. Verify system date and time, test in another browser, inspect certificate details, and scan for malware or proxy manipulation.
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Browser Redirection
Browser automatically sends users to unexpected websites. Review homepage and search settings, remove suspicious extensions, verify DNS settings, and perform malware scans.
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Degraded Browser Performance
Slow browser operation caused by excessive extensions, malware, or resource exhaustion. Disable extensions, clear cache and history, monitor resource usage, and run malware scans.