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Speed up a slow Windows PC by disabling startup apps, freeing disk space, checking heavy processes, installing updates, using Disk Cleanup, considering SSD upgrades, and scanning for malware.

Fix the Windows taskbar search box by restarting Explorer, restarting Windows Search, rebuilding the index, running Search and Indexing troubleshooter, checking paused indexing, and restarting the PC.

Fix Windows Hello face recognition by checking lighting, camera covers, privacy permissions, IR camera drivers, face profile setup, administrator policies, hardware support, and PIN fallback.

Fix Windows Hello fingerprint sign-in by cleaning the sensor, adjusting finger placement, updating biometric drivers, re-enrolling fingerprints, checking managed PC policy, testing USB readers, and using a PIN fallback.

Find hidden C drive space usage from Windows Update leftovers, hibernation, restore points, cloud sync, temp files, and large folders, then clean the right source safely.

Understand Windows 11 CPU, RAM, storage, UEFI, Secure Boot, TPM 2.0, graphics, and display requirements, check blockers with PC Health Check, and know what can and cannot be fixed.

Explain svchost.exe, why many Service Host processes run, how to inspect hosted services, how to spot fake svchost malware, and why not to kill the wrong process.

Understand the Windows Registry, hives, keys, values, safe viewing, exporting backups, restoring .reg files, and why registry cleaners are usually risky.

Explain Windows S mode, its Microsoft Store and Edge restrictions, how to check whether a PC is in S mode, how to switch out, and why the change is one-way.

Learn what a Windows system image includes, how it differs from file backup, how to create one, how restore works, and when it is worth using.