Fix computer, laptop and internet problems with step-by-step guides for Windows, Wi-Fi, routers, browsers, peripherals, performance and reliable everyday connectivity.
If Windows says “incorrect PIN entered,” stop guessing and confirm that you are entering the Windows Hello PIN for the selected account, not the account password. Restart the PC once, then choose Sign-in options to try your password. If the PIN still fails, select “I forgot my PIN” and follow the account-verification steps. Do not continue after a lockout warning.
DISM Error 87 usually means the command syntax is incorrect, an option is misspelled, or the option is unsupported by that Windows installation. Open Windows Terminal or Command Prompt as administrator, enter the DISM command with spaces and forward slashes exactly as shown, then run CheckHealth, ScanHealth, and RestoreHealth in that order.
Download the Windows 11 ISO from Microsoft’s official software-download page, not a third-party mirror. Choose the matching language and device architecture, then use the ISO either by mounting it for an in-place upgrade or by writing it to a USB drive for a clean install. Back up important files before either installation path.
If Windows shows a black screen in Safe Mode, first press Win+Ctrl+Shift+B to restart the graphics driver, then test another display or cable and use Windows Recovery Environment if the picture never returns. If Safe Mode was forced through System Configuration, clear the Safe boot option from recovery or normal Windows. Stop if the screen stays black before the Windows logo or hardware diagnostics are also invisible.
To disable hardware acceleration, open your browser’s Settings, find the System or Performance section, turn off the hardware-acceleration option, then restart the browser. In Chrome, use Settings > System and disable “Use graphics acceleration when available.” In Firefox, open Settings > General > Performance, clear recommended settings, then clear “Use hardware acceleration when available.”
Install error 0x80070103 usually affects a Windows driver update that is already installed, ranked as incompatible, or being offered for the wrong hardware state. Check Windows Update history to identify the device, restart the PC, and install the driver from the computer or component manufacturer. If the device works normally and the same update keeps returning, hide that specific driver update rather than forcing it.
Windows 10 and Windows 11 do not normally show the Windows Experience Index in Settings. Open PowerShell and run `Get-CimInstance Win32_WinSAT`; this displays stored processor, memory, graphics, gaming-graphics, and primary-drive scores. If the result is blank, run `winsat formal` in an elevated PowerShell window, wait for it to finish, then run the query again.
To remove a Conda environment, first deactivate it, then run `conda remove --name ENV_NAME --all`, replacing `ENV_NAME` with the environment’s exact name. Confirm the prompt, then run `conda env list` to check that the environment is gone. For a path-based environment, use `--prefix PATH` instead of `--name`.
Your Dell laptop may not turn on because the outlet, AC adapter, charging port, battery, power button, or internal hardware is faulty. First remove accessories, test a known-good outlet, check the charger connection and light, then perform a power reset. If lights or fans work but the screen stays black, troubleshoot the display instead of repeating power resets.
A flickering computer screen is usually caused by a loose or failing display cable, an incorrect refresh rate, a graphics driver problem, an incompatible app, or a failing monitor or laptop panel. On Windows, compare Task Manager with the rest of the display: if both flicker, suspect the driver; if only other content flickers, suspect an app.