Tech Writer, IT Professional
Richard is a writer at Geek Rewind who turns complex IT tasks into clear, step-by-step guides. He draws on years of hands-on experience in system administration and enterprise IT operations, focusing on Windows, Linux and WordPress: the problems people actually run into, and the fixes that work. His server and WordPress guides come from systems he runs himself. Richard builds and maintains the platform behind Geek Rewind, from its Ubuntu servers and Nginx configuration to its custom WordPress plugins. Many new tutorials start with readers' questions, and he's always glad to answer them in the comments.
Writes about: Windows 11, Ubuntu Linux, CMS, Apps and Browsers
3,350 tutorials · page 44
Airplane mode that won’t turn off on Windows 11 leaves your PC offline. The toggle may do nothing, or it may flip back on its own, and Wi-Fi and Bluetooth…
Printer offline errors in Windows 11 happen when your PC loses contact with your printer and stops sending jobs. The printer may be perfectly healthy. Windows just can’t reach it,…
Power modes in Windows 11 like Sleep, Hibernate, and Fast Startup control how your PC saves open work and manages energy when you step away from the screen. Sleep keeps…
A frozen “Repairing disk errors” screen in Windows 11 usually appears after a hard shutdown. That means a sudden power loss, or holding the power button to force the PC…
Moving your Windows 11 Downloads folder to another drive frees up space on your main C: drive, and the whole job takes about 5 minutes. The Downloads folder is where…
If your screen keeps flickering after an NVIDIA driver update, or an AMD or Intel one, the quickest fix is to roll back the graphics driver in Device Manager and…
A vanishing Windows 11 taskbar usually comes down to one of two things. Either an app with an unread alert is interfering with the auto-hide behavior, or the graphical shell…
Windows 11 asking for a PIN after every reboot usually means the sign-in data stored on your PC is broken or corrupted. Your settings look correct, but Windows can’t read…
Smart App Control (SAC) is a security feature in Windows 11 version 22H2 and newer. It blocks apps and scripts that Microsoft’s cloud data flags as unsafe or doesn’t recognize.…
To fix a Windows 11 PIN that stops working after you change it, clear the corrupted data from the Ngc folder, then repeat the Windows Hello PIN setup at Settings…
Startup apps in Windows 11 are programs that launch automatically the moment you turn on your computer, often slowing down your boot time and draining memory in the background. Task…
Windows 11 Credential Guard is a built-in security feature that protects your saved passwords and sign-in secrets from advanced malware by isolating them in a protected area of memory. Normal…
A Windows 11 PIN is a short code, usually four or more numbers, that you type to sign in to your PC instead of your full Microsoft account password. It…
Core Isolation uses hardware virtualization (a technology that lets your computer run a virtual system within your actual hardware) to protect low-level system processes from malicious software on Windows 11.…
Core Isolation is a group of hardware-based security features in Windows 11 and Windows 10. It uses virtualization to build a protected area in memory, a kind of virtual vault,…
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