How to

PDF preview handler not working? Turn on the File Explorer preview pane, unblock downloaded PDFs, set a default PDF reader and fix the Outlook previewer error.

Fix an overheating laptop by clearing the vents, using a hard flat surface, closing CPU-heavy apps and updating drivers and BIOS. Causes, signs and prevention.

Open source PDF editors compared: LibreOffice Draw, Inkscape, PDFsam Basic, OpenOffice Draw, Firefox, Scribus and Okular, with what each can and cannot edit.

The best free video editing software for Windows or Mac: DaVinci Resolve, Clipchamp, iMovie and Blender compared, with free-version limits and PC requirements.

Install QuickBooks Desktop by downloading it from Intuit, running QuickBooks.exe with Express install, then activating. Network setup, reinstall and fixes.

csrss.exe is the Client Server Runtime process, a critical Windows system process. Learn what it does, why two copies run, and how to spot a csrss.exe trojan.

The 25 best PC games to play right now, from Baldur’s Gate 3 and Elden Ring to Hades and Stardew Valley, with genres, release dates, price models and PC specs.

Software Protection Platform (sppsvc) high CPU usage is usually a licensing check stuck in a loop. Restart the service, fix activation and repair its task.

Best free music apps for Windows in the Store: Spotify, Media Player, Amazon Music, Pandora, Deezer, iHeart, VLC and Audacity, plus what each free tier includes.

MacBook Pro ports explained: three Thunderbolt (USB-C) ports, HDMI, SDXC, MagSafe 3 and a headphone jack, plus older models, adapters and fixes.

Windows 10 22H2 is the final Windows 10 version, build 19045. How to install it, check your version, ESU support dates, Windows 11 upgrade and install fixes.

Copilot Pro subscription is no longer sold; get its features with Microsoft 365 Premium at $19.99 a month. How to subscribe, switch, check and cancel.