Articles by Philip Celasco

A RAM cache is file data Windows keeps in memory so it loads faster. See what cached RAM means, when clearing it helps, and the safe ways to clear it on Windows.

Find your Roku PIN at my.roku.com under PIN/Parental controls, and select Change PIN if you forgot it. Covers creating, resetting, removing and Roku TV PINs.

Press F11 on Windows 10 to toggle full-screen mode in Chrome, Edge and File Explorer. Use Fn + F11 on laptops, plus fixes when F11 does nothing.

Disable Windows Defender in Windows 10 and 11 from Windows Security, Group Policy or PowerShell, make it permanent, check it is off and turn it back on.

Get free Windows 11 by upgrading a licensed Windows 10 PC through Windows Update. Insider builds, student offers, the 90-day evaluation and activation fixes.

Make a new Facebook account from your old one: export your data, move Page access, sign up, then delete or deactivate the old account under Facebook’s rules.

Insert a text box in Google Docs with Insert > Drawing > New > Text box, or use a one-cell table. Steps for desktop and phone, borders, editing and fixes.

Run the Hardware and Devices troubleshooter on Windows 11 with msdt.exe /id DeviceDiagnostic, plus the Settings and Device Manager fixes newer builds need.

Fix the KERNEL_MODE_HEAP_CORRUPTION (0x13A) blue screen on Windows 11/10: roll back the faulty driver, run SFC and DISM, test RAM and check the crash dump.

Copy and paste on a Chromebook with Ctrl + C and Ctrl + V. Shortcuts for text, images, screenshots, clipboard history and fixes when paste stops working.

Run chkdsk on Windows 11 to scan and repair a hard drive: when to use /scan, /f or /r, how to fix the C: drive at restart, read results and stop a check.

Water tracking apps compared: Waterllama, Hydro Coach, Plant Nanny, WaterMinder, MyFitnessPal and more, with platforms, reminders, goals and health sync.