Why Has My 2.4 GHz Wi‑Fi Speed Dropped to About 4 Mbps?
My router provides around 100 Mbps over 5 GHz, but my PC is far enough away that I normally use 2.4 GHz. That connection used to reach roughly…
driver issues
Windows PC keeps restarting even at the login screen—how can I find the cause?
My Windows PC restarts repeatedly even when nobody is logged in. It has rebooted several times while sitting at the Windows sign-in screen, and Windows sometimes says the…
Laptop became slow after overheating and now Minecraft reports an OpenGL driver error
About three weeks ago, my gaming laptop overheated and blue-screened. I had to use the recovery key to get it working again, but it has been noticeably slower…
Nvidia GPU Shows Code 43 and Won’t Output to a Monitor
The Nvidia GPU appears in the BIOS, but Windows cannot use it: HDMI output does not work and GPU-intensive applications fail. I have already restarted several times, completely…
Nvidia GPU Shows Code 43 and Won’t Output to a Monitor
The Nvidia GPU appears in the BIOS, but Windows won't let me use it. HDMI output doesn't work, and GPU-intensive applications fail. I've already restarted after removing the…
Did GeForce Game Ready Driver 617.14 Hurt RTX 3070 Performance?
I updated my RTX 3070 to GeForce Game Ready Driver 617.14, but my performance became noticeably worse, so I rolled back to version 616.92. Has anyone else experienced…
DPC_WATCHDOG_VIOLATION BSODs Triggered by USB Wi‑Fi Adapter
For the past couple of weeks, my computer has been crashing with a DPC_WATCHDOG_VIOLATION blue screen shortly after I log in and open Opera GX. It often crashes…
Games Perform Worse After Upgrading to a Ryzen 7 7800X3D Platform
I recently upgraded my motherboard, CPU, and memory. The new system uses an ASUS B650E motherboard, 32GB of DDR5-6000 RAM, and a Ryzen 7 7800X3D, while I kept…
PC Randomly Freezes and Restarts, but Works in Safe Mode
My Windows 11 PC randomly freezes and restarts. It can happen at the login screen, on the desktop, while gaming, or even when nothing is open. Sometimes it…
Task Manager freezes and shows no processes after high system interrupts
My CPU usage suddenly climbed to around 95% under "System interrupts." When I opened Task Manager to investigate, the Performance tab stopped responding. Since then, Task Manager barely…
Repeated BSODs with different stop codes and new display lines
My PC has been crashing repeatedly for the past two days with several different blue-screen errors, including SYSTEM_SERVICE_EXCEPTION, KERNEL_SECURITY_CHECK_FAILURE, KMODE_EXCEPTION_NOT_HANDLED, and PAGE_FAULT_IN_NONPAGED_AREA. Windows Memory Diagnostic found no RAM…
Windows 11 PC randomly freezes and restarts, but works in Safe Mode
My Windows 11 PC keeps freezing and then restarting at seemingly random times. It can happen on the login screen, desktop, in a game, or while I'm only…
Why does my Ethernet connection randomly disconnect?
My wired Ethernet connection randomly stops working and reports a bad connection. Restarting the network adapter sometimes helps, but I've already tried the basic troubleshooting steps and can't…
Wi-Fi stopped working and four keyboard keys failed after a Windows update
A Windows update installed on September 11, and by the next day the laptop could no longer connect to any wireless network—not the home network, nearby networks, or…
New PC Freezes and Reboots While Gaming—Could Power or Peripherals Be the Cause?
I recently replaced my old computer because it had been crashing, but the new system is doing something very similar. The crashes usually happen during games: the audio…
New PC Freezes and Reboots While Gaming—Could the Power or a Shared Device Be the Cause?
I recently replaced an older PC that had been crashing, but the new system is now showing very similar behavior. The crashes usually happen while gaming: the audio…
Why does my Lenovo ThinkPad T14 Gen 2 freeze in Windows 11 but run Linux Mint normally?
I have two Lenovo ThinkPad T14 Gen 2 laptops with AMD processors. Both need to run Windows, so I installed Windows 11 Pro. One works normally, but the…
How can I diagnose recurring BSODs and crashes after a clean Windows 11 install?
My MSI Vector 16 HX A14VHG has become increasingly unstable. It has an Intel Core i9-14900HX, RTX 4080 Laptop GPU, 32 GB of RAM, and a 1 TB…
Why does my screen go black while the fans suddenly run at full speed during games?
My PC occasionally loses video output while the fans immediately ramp up to 100%. This happens most often a few minutes into gaming, although sometimes I can play…
Windows 11 Laptop Suddenly Finds No Wi‑Fi Networks
My Windows 11 laptop was connecting normally yesterday, but today it says no networks are available. Airplane mode is turned off. I've already reinstalled and updated the network…