Hardware & Peripheral Troubleshooting Guides
Hardware problems range from a PC that will not power on to a printer that sits offline. Many of them are not hardware failures at all: a missing or corrupted driver, a device disabled in Device Manager, a privacy setting that blocks the camera or microphone, or a stuck print queue produce the same symptoms as a broken part. The first steps are always about telling those cases apart.
Guides in this section are grouped by device: displays and monitors, storage drives, USB devices, keyboards, mice and touchpads, laptop batteries and charging, audio, cameras and printers. Each one starts with checks that need no tools, moves on to driver and Windows settings fixes, and explains which signs mean the part itself is failing and needs replacing rather than more troubleshooting.
If you are not sure whether the problem is a driver or the hardware, a technician can run the diagnostics remotely and tell you before you spend money on parts.
All 28 guides in this topic
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Camera Not Working on Windows 11? Fix It in Minutes
Windows 11 camera showing a black screen or missing from Device Manager? Fix privacy settings, drivers, and app conflicts with this step-by-step guide.
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Computer Freezes Randomly? How to Find and Fix It
Random PC freezes? Safe Mode test splits software vs hardware in 60 seconds. Driver rollbacks, overheating fixes, and bad RAM diagnosis.
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Computer Turns On But No Display? Complete Fix Guide
PC powers on but the screen stays black? Diagnose monitor cables, dead GPUs, loose RAM, and BIOS issues. Step-by-step fix from RebootDoctor.
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Computer Won't Turn On? How to Fix It Fast
Computer won't turn on? Match your symptom — dead silence, fans but no display, or crash loops — to the right fix. Step-by-step guide from RebootDoctor.
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Display Driver Stopped Responding — Fix (Windows 11)
GPU crashing with 'display driver stopped responding'? Check Event Viewer for the exact driver, then DDU clean install or test if the card is dying.
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External Hard Drive Not Showing Up — Fix It
External drive not showing in File Explorer? Check Disk Management, fix uninitialized drives, repair USB and partition issues step by step.
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Fix Sound Crackling on Windows 11
Fix audio crackling, popping, and stuttering on Windows 11. Sample rate mismatch, DPC latency from WiFi/GPU drivers, and audio enhancements.
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Hard Drive Not Detected on Windows 11? Complete Fix
Windows 11 not seeing your internal or external drive? Recover unrecognized SSDs, missing partitions, and dead drives step by step.
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How to Check RAM on Windows 11
Check how much RAM you have, its speed, channel config, and health. Task Manager, CPU-Z, MemTest86 guide for Windows 11.
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Keyboard Typing Wrong Characters? Windows 11 Fix
Keyboard typing wrong letters on Windows 11? Fix accidental layout switches, Num Lock overlay, Sticky Keys, and hardware faults fast.
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Laptop Battery Draining Fast on Windows 11? Fix Guide
Windows 11 battery dying in 2 hours? Find the apps and services eating your power, fix sleep drain, and get back to all-day runtime. From RebootDoctor.
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Laptop Keyboard Not Working? Diagnostic & Fix
Laptop keyboard not typing? Diagnose stuck keys, dead rows, driver issues, ribbon cable damage, and liquid spills. Step-by-step fix from RebootDoctor.
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Laptop Plugged In but Not Charging? Actual Fixes
Fix 'plugged in, not charging' on any laptop. Check conservation mode, battery health, USB-C wattage, and charging port — with costs for each fix.
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Laptop Screen Flickering? How to Diagnose and Fix It
Laptop screen flickering? Two 30-second tests split software vs hardware. DDU driver fix, hinge cable diagnosis, OLED PWM, Event Viewer shortcuts.
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Laptop Touchpad Not Working? Windows 10/11 Fix Guide
Touchpad dead on Windows 10/11? Fix Fn-lock toggle, broken Precision drivers, palm rejection, and gesture issues. Step-by-step from RebootDoctor.
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Microphone Not Working on Windows 11? Fix
Windows 11 mic not picking up sound? Fix muted input, missing devices, privacy settings, and Bluetooth headset issues in 10 minutes.
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Mouse Not Working on Windows 11? Fix USB & Bluetooth
Mouse stopped working on Windows 11? Fix USB power management, reinstall HID drivers, clear ghost devices, and fix Bluetooth re-pairing issues.
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PC Randomly Shuts Down? Find the Exact Cause
Computer shutting off randomly? Check Event Viewer for Kernel-Power 41, test PSU capacity, diagnose thermal shutdown vs power failure.
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Print Jobs Stuck in Queue? Fix It on Windows 10 and 11
Print jobs stuck in queue and refusing to delete? Read the Status column, restart the Print Spooler, and purge the spool folder on Windows 10 and 11.
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Print Spooler Keeps Stopping? Fix It on Windows 10 and 11
Print spooler keeps stopping on Windows 10 or 11? Auto-restart it, purge the corrupt job, then read Event ID 7034 to find the driver killing it.
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Printer Driver Is Unavailable? The Fix That Actually Sticks
Windows says the printer driver is unavailable? Remove the printer AND its driver package, restart, reinstall - plus why brand-new PCs keep hitting this error.
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Printer Offline on Windows 11? Complete Fix Guide
Windows 11 says your printer is offline but it's powered on and connected? Fix the spooler, restore drivers, and get back to printing in 10 minutes.
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Printer Printing Blank Pages? Fix It on Windows 10/11
Printer printing blank pages? Print the printer's own self-test page first — it shows whether the fault is the ink and printhead or a Windows driver or setting.
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Second Monitor Not Detected on Windows 11? Fix Guide
Windows 11 won't detect your second monitor? Fix HDMI/DisplayPort issues, graphics drivers, and dual-display setup in 15 minutes.
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USB Device Not Recognized in Windows 11: What to Check
USB device not recognized in Windows 11? Use what Device Manager shows to find the cause: port, cable, Code 43, missing drive letter, or USB power saving.
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Why Is My Computer So Loud? Find the Source
Computer fan loud? Diagnose fan noise vs coil whine vs hard drive clicking. Software fan curves, dust cleaning, and when to replace hardware.
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Windows 11 Brightness Not Working — Fix It
Can't adjust brightness on Windows 11? Fix missing sliders, broken Fn keys, display drivers, and adaptive brightness settings.
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Windows 11 Keeps Restarting? Find the Cause
Windows 11 randomly restarts with no warning? Learn to read Event Viewer, identify hidden BSODs, fix GPU drivers, and stop restart loops for good.
Not sure if it’s software or hardware?
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