Buying & Upgrades guides
Spend well: which upgrade actually helps, how much RAM you need, choosing an SSD, and when a repair beats a replacement.
Where to begin
Find the bottleneck before you spend money. Task Manager shows whether memory, disk, or CPU is running out during the work you do every day.
On most older PCs, moving from a hard drive to an SSD makes the biggest visible difference. Adding RAM helps when memory stays close to full.
Check compatibility before you order: the RAM type, the SSD interface, physical fit, and the wattage and connectors of the power supply. The motherboard or laptop manual lists these. If a repair costs close to the price of a replacement, compare the two before you commit.
Start here
- The Best PC Upgrades to Speed Up an Old Computer
The best upgrades to speed up an old PC, ranked by impact (SSD, RAM, cleanup, and cooling) plus how to know when it's smarter to replace the machine.
- How Much RAM Do I Need? A Practical Guide
8GB, 16GB, or 32GB? Work out how much RAM you actually need for browsing, gaming, or creative work, check what you have, and upgrade without wasting money.
- How to Choose an SSD for Your PC (SATA vs NVMe)
Buying an SSD for your PC? Understand SATA vs NVMe, M.2 vs 2.5-inch, capacity, and DRAM so you pick the right drive and actually feel the speed boost.
- How to Choose a Power Supply (PSU) for Your PC
How many watts you actually need, what 80 Plus ratings mean, ATX 3.1 and the 12V-2x6 GPU connector, modular cables, and the PSU mistakes that damage hardware.
More guides (39)
- Fix External Hard Drive Not Showing Up in Windows 11
External drive not showing in File Explorer? Check Disk Management, assign a drive letter, fix USB power and drivers, and avoid the prompts that erase data.
- How to Fix a 144Hz Monitor Stuck at 60Hz in Windows 11
High refresh rate monitor stuck at 60Hz on Windows 11? Set the refresh rate, use the right cable and GPU port, change monitor OSD settings, and fix the driver.
- Fix Bad Bluetooth Headphone Sound Quality in Windows 11
Bluetooth headphones sound muffled, tinny, or like a phone call on Windows 11? Switch to stereo mode, stop the hands-free profile, and fix choppy audio.
- How to Fix PFN_LIST_CORRUPT in Windows 11
PFN_LIST_CORRUPT means Windows' index of physical memory pages was damaged. Test the RAM first, then the storage driver: here is the order that works.
- How to Enter BIOS or UEFI Settings in Windows 11
Need to change boot order, enable TPM, or turn off XMP? Here is how to enter BIOS or UEFI on Windows 11 from inside Windows and with the setup key at startup.
- How to Clone a Hard Drive to an SSD in Windows 11
Move Windows 11 to a new SSD without reinstalling. Prepare the drive, clone the whole disk, fix the boot order, and verify the result step by step.
- How to Check Laptop Battery Health in Windows 11
Generate a Windows 11 battery report to compare real capacity against design capacity, judge how much life is left, and decide whether to replace it.
- How to Fix WHEA_UNCORRECTABLE_ERROR in Windows 11
WHEA_UNCORRECTABLE_ERROR means hardware reported a fault Windows can't recover from. Isolate RAM, CPU, drive, or overclock with these ordered tests.
- How to Fix Mouse Lag and Stuttering in Windows 11
Mouse pointer skipping, freezing, or lagging in Windows 11? Fix wireless interference, polling and power settings, drivers, and surface problems.
- How to Fix CLOCK_WATCHDOG_TIMEOUT in Windows 11
CLOCK_WATCHDOG_TIMEOUT means a CPU core stopped responding. Fix unstable overclocks, bad drivers, and cooling faults with these step-by-step checks.
- How to Install Windows 11 on an Unsupported PC
PC blocked by the TPM 2.0 or CPU requirement? Install Windows 11 on unsupported hardware safely, understand the risks, and keep your files, step by step.
- How to Fix USB Device Not Recognized in Windows 11
USB device not recognized or showing as Unknown Device in Windows 11? Reset USB controllers, fix power settings, and get the device detected again.
- How to Fix Loud Fan Noise on a Windows 11 PC
PC or laptop fans running loud and constant? Find what's loading the CPU, clean the cooling path, and fix fan curves with these step-by-step quieting fixes.
- How to Fix a Laptop Plugged In but Not Charging
Laptop says plugged in, not charging in Windows 11? Test the adapter, reset the battery driver, check charge limits, and fix the port step by step.
- How to Fix 100% CPU Usage in Windows 11
CPU stuck at 100% and your PC crawling? Find the process eating your processor, stop background hogs, and cool a throttling CPU with these step-by-step fixes.
- How to Fix HDR Not Working in Windows 11
HDR toggle missing, colors look washed out, or games won't enable HDR? Fix display cable, GPU settings, Windows HDR calibration, and monitor compatibility.
- How to Fix Game Controller Not Working in Windows 11
Controller not detected or buttons dead in games? Fix Windows drivers, USB ports, Steam Input, and game controller settings.
- How to Fix Windows Hello (Face/Fingerprint) Not Working
PIN works but face or fingerprint won't enroll or sign in? Update drivers, reset Hello, check BIOS TPM, and fix camera privacy settings on Windows 11.
- How to Fix Windows 11 Touchpad Not Working on a Laptop
Touchpad frozen, disabled, or gestures gone on Windows 11? Turn off accidental disable keys, reinstall precision drivers, and fix BIOS touchpad settings.
- How to Fix Screen Flickering or Flashing in Windows 11
Monitor flashing black, horizontal lines, or desktop flicker in Windows 11? Test in Task Manager, fix refresh rate mismatch, and roll back bad GPU drivers.
- How to Fix a PC That Won't Turn On
Press power and nothing happens, no fans, no lights, or it shuts off instantly? Check outlet, PSU, RAM, and front-panel wiring before replacing parts.
- How to Fix Keyboard Not Typing in Windows 11
Keyboard dead in Windows but works in BIOS? Fix filter keys, language layout, USB power saving, and drivers, or use the on-screen keyboard to sign in.
- How to Fix Headphones Not Detected in Windows 11
Sound plays through the monitor instead of headphones, or the 3.5 mm jack is ignored? Fix default output, jack detection, and Realtek audio on Windows 11.
- How to Fix USB Ports Not Working in Windows 11
USB mouse, flash drive, or phone not detected in Windows 11. Try different ports, reset controllers, update chipset drivers, and fix power management.
- How to Check and Upgrade RAM in Your PC
Find out if your PC has free RAM slots, which DDR type you need, and how to install sticks without breaking clips, before you buy the wrong kit.
- How to Enable TPM 2.0 and Secure Boot for Windows 11
PC Health Check failed for the Windows 11 upgrade? Turn on TPM 2.0, Secure Boot, and UEFI in your BIOS so the install completes on supported hardware.
- How to Fix No Bootable Device Errors on Windows 11
No bootable device or OS not found on Windows 11? Fix boot order in BIOS and repair the bootloader with bcdboot or recovery.
- How to Fix a Laptop Battery Draining Fast in Windows 11
Laptop battery dying in 1–2 hours on Windows 11? Check battery health, power mode, and the apps quietly draining charge, and fix the worst offenders.
- How to Fix a Black Screen on Boot in Windows 11
Monitor stays black when the PC powers on, no BIOS, no login, or just a cursor? Cable checks, GPU swaps, driver rollback, and Windows boot recovery.
- How to Fix a Microphone Not Working in Windows 11
Mic not working in Teams, Zoom, or Discord on Windows 11? Fix the default input device, privacy permissions, mic levels, and per-app sound settings.
- How to Fix a Printer Showing Offline in Windows 11
Windows 11 printer stuck offline or jobs stuck in queue? Set the printer online, clear the print spooler, reinstall the driver, and fix Wi-Fi printer IPs.
- How to Check Your PC Specs on Windows 11
Find your CPU, RAM, GPU, motherboard, and storage on Windows 11 using Settings, Task Manager, dxdiag, and System Information, no extra software needed.
- How to Fix Bluetooth Not Working in Windows 11
Bluetooth missing, won't pair, or headphones connect on Windows 11 with no sound? Restart Bluetooth services, update drivers, and re-pair devices fast.
- How to Fix a Webcam Not Working in Windows 11
Webcam stays black in Teams or Zoom on Windows 11? Fix camera privacy settings, the Fn-key shutter, drivers, and the right device selected in the app.
- How to Fix a Second Monitor Not Detected in Windows 11
Second monitor not detected on Windows 11? Fix it with the Extend display setting, HDMI/DisplayPort cable checks, GPU ports, dock drivers, and ghosts.
- How to Clean Your Laptop and Devices Safely
Dust, grime, and sticky keys hurt performance and hygiene. How to safely clean your laptop, phone, and screens without damaging them.
- Windows 10 End of Support: What to Do Now
Windows 10 support ended October 14, 2025. Learn your options: upgrade to Windows 11, get Extended Security Updates, or move on safely without losing data.
- How to Fix CPU Overheating and Thermal Throttling
PC fans revving loud or games suddenly stuttering on Windows? Diagnose and fix CPU overheating and thermal throttling with temps, paste, and airflow.
- How to Fix No Audio or Sound in Windows 11
Speakers or headphones silent on Windows 11 or 10? Follow these step-by-step troubleshooting fixes to restore PC audio: drivers, devices, services.