Salman RK
Salman RK is a Computer Tech Expert at theCoreiTech. Salman reviews the Troubleshooting, How-To Guides, and Gaming Computers sections and has published research-based IT guidance online since 2018.
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How-To Guides
How to Stream Games on Twitch
How to stream games on Twitch: set up OBS Studio, connect your Twitch account, configure encoder and bitrate, add overlays,…
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How-To Guides
How to Record Your Screen on a PC
How to record your screen on a PC: use the Xbox Game Bar, OBS Studio, or other tools to capture…
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How-To Guides
How to Benchmark Your PC
How to benchmark your PC: test the CPU with Cinebench, the GPU with 3DMark, and storage with CrystalDiskMark, then compare…
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How-To Guides
How to Install Windows 11
How to install Windows 11: check TPM 2.0 and system requirements, create installation media, boot from USB, and complete setup…
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How-To Guides
How to Free Up Disk Space on Windows
How to free up disk space on Windows: run Disk Cleanup and Storage Sense, clear temp files, uninstall apps, and…
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How-To Guides
How to Create a Bootable USB Drive
How to create a bootable USB drive: use the Media Creation Tool or Rufus to make Windows installation media on…
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How-To Guides
How to Do a Clean Install of Windows
How to do a clean install of Windows: back up files, create installation media, delete old partitions, and install a…
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How-To Guides
How to Factory Reset Windows
How to factory reset Windows: use Reset This PC to keep or remove files, reinstall Windows from the cloud or…
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How-To Guides
How to Update Drivers in Windows
How to update drivers in Windows: use Windows Update, Device Manager, and manufacturer tools to update GPU, chipset, and other…
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How-To Guides
How to Install a Graphics Card
How to install a graphics card: remove the old GPU, seat the new card in the PCIe slot, connect power,…
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How-To Guides
How to Upgrade Laptop RAM
How to upgrade laptop RAM: check compatibility and slots, open the laptop safely, replace the SO-DIMM modules, and verify the…
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How-To Guides
How to Clone a Hard Drive to an SSD
How to clone a hard drive to an SSD: connect the new drive, use cloning software like Macrium Reflect, copy…
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How-To Guides
How to Install an SSD
How to install an SSD: mount a 2.5-inch SATA drive or an M.2 NVMe drive, connect it, and initialize and…
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How-To Guides
How to Set Up a Home Network
Set up a home network by connecting the modem to the router WAN port, positioning the router, naming the Wi-Fi,…
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How-To Guides
How to Set Up a Wi-Fi Router
Set up a Wi-Fi router by connecting it to the modem, logging in at the gateway address, running the setup…
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How-To Guides
How to Find Your IP Address
Find your IP address by reading the private IP with ipconfig or device settings, the public IP through a browser…
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How-To Guides
How to Change Your DNS Server
Change your DNS server to Cloudflare 1.1.1.1 or Google 8.8.8.8 on Windows or the router, flush the cache with ipconfig…
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How-To Guides
How to Improve Your Wi-Fi Signal
Improve your Wi-Fi signal by repositioning the router, reducing interference, changing the channel, using the 5 GHz band, updating firmware,…
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How-To Guides
How to Replace a Power Supply
Replace a PC power supply: choose a compatible PSU, discharge the system, swap the unit with correct fan orientation, reconnect…
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How-To Guides
How to Install a CPU
Install a CPU on Intel LGA or AMD AM5 and AM4: open the socket, align the gold triangle, seat the…
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How-To Guides
How to Add Storage to Your PC
Add storage to your PC: weigh internal SSD, hard drive, external USB, and NAS options, install the drive, then initialize…
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How-To Guides
How to Clean Your PC
Clean your PC: remove dust from fans, heatsinks, and filters with compressed air and a soft brush, clean a laptop's…
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How-To Guides
How to Upgrade a Laptop SSD
Upgrade a laptop SSD: confirm the M.2 or 2.5-inch slot, clone or clean-install Windows, swap the drive through the bottom…
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How-To Guides
How to Back Up Your Computer
Back up your computer with File History, a full system image, and cloud backup, following the 3-2-1 rule to protect…
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How-To Guides
How to Uninstall Programs Completely
Completely uninstall programs in Windows by removing the app, leftover files, registry keys, and startup entries with the built-in tools…
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How-To Guides
How to Speed Up Windows 11
Speed up Windows 11 by disabling startup apps, freeing disk space, turning off visual effects, updating drivers, and moving to…
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How-To Guides
How to Dual Boot Windows and Linux
Dual boot Windows and Linux by shrinking a partition, creating a bootable Ubuntu USB, installing alongside Windows, and letting GRUB…
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How-To Guides
Computer How-To Guides: Step-by-Step PC Tutorials
Step-by-step PC how-to guides covering hardware upgrades, Windows setup, networking, security, and gaming performance, with 49 linked tutorials.
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Troubleshooting & Fixes
How to Fix the No Bootable Device Error
No bootable device found? Fix the boot error by setting the correct boot drive in BIOS, checking SATA and NVMe…
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How-To Guides
How to Build a PC: Step-by-Step Guide
How to build a PC step by step: install the CPU, RAM, cooler, motherboard, GPU, storage, and power supply, then…
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How-To Guides
How to Use System Restore in Windows
Use System Restore in Windows to enable protection, create a restore point, and roll back system files, drivers, and the…
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Troubleshooting & Fixes
How to Fix a Computer That Won’t Turn On
How to fix a computer that won't turn on: test the outlet, PSU switch and connectors, paperclip test, reseat RAM…
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Troubleshooting & Fixes
How to Fix a PC That Turns On But Shows No Display
PC turns on but no display? Fix the no-signal problem by checking the monitor input, GPU seating and power, RAM,…
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Troubleshooting & Fixes
How to Fix a Computer That Keeps Restarting
Computer keeps restarting? Stop random reboots by disabling auto-restart, checking overheating and the PSU, testing RAM, updating drivers, and reading…
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Troubleshooting & Fixes
How to Fix a Computer That Keeps Freezing
Computer keeps freezing? Fix random freezes caused by overheating, RAM faults, drivers, disk errors, and background processes with these steps.
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Troubleshooting & Fixes
How to Fix Slow Startup in Windows
Slow Windows startup? Speed up boot time by disabling startup programs, enabling fast startup, moving to an SSD, and trimming…
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Troubleshooting & Fixes
How to Fix Lag and Stuttering on a PC
PC lag and stuttering during games or video? Fix frame drops and micro-stutter from drivers, background apps, power plans, and…
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Troubleshooting & Fixes
How to Fix Random PC Shutdowns
Random PC shutdowns trace to overheating, the power supply, dust, RAM, and power settings. Work through these ranked, step-by-step fixes…
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Troubleshooting & Fixes
How to Fix a Computer Stuck on the Boot Screen
A computer stuck on the boot screen hangs during POST. Fix it by disconnecting USB devices, reseating RAM and drives,…
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Troubleshooting & Fixes
How to Fix Windows Stuck on the Loading Screen
Windows stuck on the loading screen comes from corrupted files, bad drivers, or a failing drive. Fix it with Safe…
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Troubleshooting & Fixes
How to Fix a Computer That Turns Off by Itself
A computer that turns off by itself usually has an aggressive sleep or power setting. Fix idle power-offs by adjusting…
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Troubleshooting & Fixes
How to Fix a Slow Computer
Fix a slow computer by disabling startup programs, closing background processes, freeing disk space, scanning for malware, updating drivers, and…
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Troubleshooting & Fixes
How to Fix an Overheating Laptop
Overheating laptop shutting down or throttling? Fix high temperatures by clearing dust, repasting, adjusting power limits, and improving ventilation.
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Troubleshooting & Fixes
How to Fix 100% Disk Usage in Windows
Fix 100 percent disk usage in Windows by identifying the process, disabling SysMain and Windows Search, setting a fixed pagefile,…
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Troubleshooting & Fixes
How to Fix High CPU Usage
Fix high CPU usage by finding the top process in Task Manager, ending or updating runaway apps, scanning for malware,…
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Troubleshooting & Fixes
How to Fix High RAM and Memory Usage
Fix high memory usage by identifying high-memory processes in Task Manager, restarting leaking apps, limiting startup programs, increasing the pagefile,…
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Troubleshooting & Fixes
How to Fix KERNEL_SECURITY_CHECK_FAILURE
Fix KERNEL_SECURITY_CHECK_FAILURE by updating drivers, running SFC and DISM, testing RAM with Windows Memory Diagnostic, running chkdsk, and removing recent…
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Troubleshooting & Fixes
How to Fix the Blue Screen of Death (BSOD)
Fix the Blue Screen of Death by reading the stop code, updating or rolling back drivers, testing RAM, running SFC…
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Troubleshooting & Fixes
How to Read and Fix BSOD Stop Codes
Read and fix BSOD stop codes: where to find the code, what the most common Windows stop codes mean, and…
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Troubleshooting & Fixes
How to Fix DRIVER_POWER_STATE_FAILURE
Fix DRIVER_POWER_STATE_FAILURE by identifying the failing driver in the minidump, updating or rolling it back, disabling Fast Startup, and adjusting…
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Troubleshooting & Fixes
How to Fix SYSTEM_SERVICE_EXCEPTION
Fix SYSTEM_SERVICE_EXCEPTION by identifying the failing driver in the minidump, updating or rolling it back, running SFC and DISM, testing…
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Troubleshooting & Fixes
How to Fix CRITICAL_PROCESS_DIED
Fix CRITICAL_PROCESS_DIED, including the boot loop, with SFC and DISM, driver updates, chkdsk, a clean boot, System Restore, and disk…
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Troubleshooting & Fixes
How to Fix PAGE_FAULT_IN_NONPAGED_AREA
Fix PAGE_FAULT_IN_NONPAGED_AREA by testing and reseating RAM, updating drivers, running SFC and DISM, disabling Fast Startup, and resetting the pagefile.
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Troubleshooting & Fixes
How to Fix a Keyboard That’s Not Working
Keyboard not working on Windows? Fix wired and wireless keyboards by testing the USB port, replacing batteries, reinstalling the driver,…
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Troubleshooting & Fixes
How to Fix a Mouse That’s Not Working
Mouse not working or cursor frozen? Fix wired and wireless mice by testing the USB port, replacing batteries, reinstalling the…
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Troubleshooting & Fixes
How to Fix No Sound on a Computer
Fix no sound on a computer by selecting the correct playback device, checking the Volume Mixer, verifying the cable and…
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Troubleshooting & Fixes
How to Fix a Webcam That’s Not Working
Webcam not working in Windows or Zoom? Fix it by enabling camera access, granting per-app permission, selecting the right camera,…
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Troubleshooting & Fixes
How to Fix a Hard Drive Not Detected
Hard drive not detected in BIOS or Windows? Fix a missing HDD by checking SATA cables and power, the BIOS,…
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Troubleshooting & Fixes
How to Fix a Monitor Showing No Signal
Fix a monitor showing No Signal by selecting the correct input source, plugging into the graphics card ports, swapping the…
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Troubleshooting & Fixes
How to Fix USB Device Not Recognized
USB device not recognized in Windows? Fix it by trying another port, reinstalling USB drivers, disabling USB selective suspend, and…
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Troubleshooting & Fixes
How to Troubleshoot a Motherboard With No Power
Motherboard getting no power? Diagnose a dead board by testing the PSU, checking standoffs and front-panel wiring, clearing CMOS, and…
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Troubleshooting & Fixes
How to Fix a Second Monitor Not Detected
Fix a second monitor not detected by pressing Win+P and choosing Extend, forcing Detect in Display settings, swapping the cable,…
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Troubleshooting & Fixes
How to Fix a PC Where Fans Spin But It Won’t Boot
PC fans spin but it won't boot or POST? Fix a no-POST system by reseating RAM and GPU, clearing CMOS,…
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Troubleshooting & Fixes
How to Fix Screen Flickering
Fix screen flickering by running the Task Manager test, setting the correct refresh rate, clean-installing the GPU driver with DDU,…
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Troubleshooting & Fixes
How to Fix No Internet Connection
Fix no internet connection on Windows by restarting the router, running the Network troubleshooter, renewing the IP address, flushing DNS,…
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Troubleshooting & Fixes
How to Fix Wi-Fi That Keeps Disconnecting
Fix Wi-Fi that keeps disconnecting on Windows by disabling adapter power management, updating the driver, reducing interference, changing the channel,…
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Troubleshooting & Fixes
How to Fix Ethernet Not Working
Fix Ethernet not working on Windows by checking the cable and link lights, swapping the port, enabling and reinstalling the…
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Troubleshooting & Fixes
How to Fix Windows Update Errors
Fix Windows Update errors by reading the error code, running the troubleshooter, clearing the SoftwareDistribution folder, running SFC and DISM,…
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Troubleshooting & Fixes
How to Diagnose and Fix an Overheating PC
PC overheating and shutting down? Diagnose the cause and fix high CPU and GPU temperatures with dust cleaning, repasting, airflow,…
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Troubleshooting & Fixes
How to Fix GPU Artifacts and Graphical Glitches
GPU artifacts, screen tearing shapes, or color glitches? Fix graphical artifacts from overheating, bad drivers, overclocks, and failing VRAM.
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