Show file extensions in Windows before renaming a file
Enable file-name extensions, recognise names such as report.pdf.exe and avoid mistaking a renamed extension for a real format conversion.
Microsoft Support — common file name extensions
Find a guide for the task at hand 3
Search for a problem or tool, or browse guides and comparisons by section.
274 topics in Arabic and English
PNG, JPEG or WebP: choose the format for the image
Compare formats for photos, screenshots and transparency, then check the exported result and the upload service’s accepted formats.
MDN — Image formats
Free up Windows storage without deleting useful files
Find what fills the drive, review temporary-file categories and configure Storage Sense without accidentally clearing Downloads or needed local copies.
Microsoft — Storage Sense
Firefox Strict tracking protection: enable and test it
Turn on Strict protection, check the shield report and fix a broken site with a site-specific exception rather than disabling protection everywhere.
Mozilla — Enhanced Tracking Protection
Incognito, Guest or a Chrome profile: which should you use?
Choose a temporary session, a guest window or a separate everyday profile. Understand what remains visible and what is not protected on a shared computer.
Google Chrome Help — Guest mode
Google backup codes: create, store and replace a recovery set
Find Google’s backup-code controls, keep the recovery copy outside the lost phone and understand what happens when a code is used or a set is replaced.
Google Account Help — backup codes
Windows clipboard history: use it and remove sensitive text
Open copied items with Win+V, understand device sync and delete a private item rather than assuming the normal clipboard was cleared.
Microsoft Support — using the clipboard
Android says Private DNS cannot connect: what to check
Check the provider hostname, compare Automatic mode and test another connection before resetting Android network settings.
Android Help — advanced network settings
Check a download’s SHA-256 hash on Windows
Calculate a file hash with PowerShell or the local browser tool, compare it with the publisher’s value and understand what a match can prove.
Microsoft — Get-FileHash
Hugging Face model cards: what to check before downloading
Read the model card’s task, licence and evaluation, then check the files and memory estimate. A practical checklist for choosing a usable model.
Hugging Face — model cards
How to check Steam Cloud sync before switching computers
Check support for the game, wait for sync after quitting and verify your progress on the second device without risking the only good save.
Steam — Steam Cloud
PS Remote Play setup on PS5 and PS4: phone and rest-mode checks
Follow the console settings, enable wake from rest mode and test your phone at home before troubleshooting an outside connection.
PlayStation — Remote Play settings
Gemini API free tier: check availability, limits and data terms
A free input/output row does not make every feature free or suitable for confidential data. Read the exact model’s tier and terms.
Google — Gemini API pricing
Review an AI email draft before it makes a promise for you
Check commitments, dates, recipients and attachments, then edit the tone and send only after your own final review.
Microsoft Support — Copilot email drafts
Redact a screenshot in a flattened copy before uploading it
Crop unnecessary content, cover sensitive details with an opaque edit and reopen the exported image to verify what remains visible.
Microsoft Support — Snipping Tool
Check an AI PDF summary for the conditions it may omit
Map each important summary point to its page, inspect exclusions and tables and distinguish missing evidence from a concise explanation.
OpenAI Help — file uploads
Sleep, hibernate or shut down a Windows laptop?
Choose a power mode for a quick break, an overnight stop or travel. Find the Windows controls and check what closing the screen actually does.
Microsoft Support — sleep and hibernate
Review browser camera and microphone access at both permission layers
Check the site’s grant and the operating system’s browser access, then test the intended device without opening permissions everywhere.
Google Chrome Help — camera and microphone