Microsoft Windows

Download Windows 11 ISO Files (64-bit) – Complete Guide

Windows 11 is Microsoft's current desktop operating system, and just like Windows 10 before it, the ISO files are available to download for free directly from Microsoft. You can use an ISO to perform a clean install or to upgrade an existing Windows 10 or older Windows 11 machine.

Download Windows 11 25H2 ISO – Complete Guide with Direct Links

Windows 11 version 25H2 is the 2025 annual feature update for Windows 11. Microsoft released it to the public on 30 September 2025, and it began rolling out to all eligible devices through Windows Update from 16 October 2025. This SoftwareKey.lk guide walks you through what the update actually changes, where to download the official ISO files, the hardware you need, and every way to install it — whether you are upgrading a single home PC or preparing media for several machines.

How to Change a File or Folder Date Timestamp on Windows

Modify the Date Created, Date Modified, and Date Accessed timestamps using PowerShell or dedicated tools.

List of Windows Control Panel Applets (CPL Files)

Open any Control Panel tool instantly using its .cpl command from Run, Command Prompt, or PowerShell.

The Complete History of Windows Versions

Microsoft Windows has been around since 1985, when Windows 1.01 first reached the public. Four decades later it has evolved into Windows 11, the current release. Along the way, each major version also spawned sub-versions delivered through feature updates — originally twice a year, and now once a year.

How to Delete, Enable, or Disable Run Command History in Windows 11 and 10

Clear the Run dialog’s autosuggestions and control whether Windows remembers what you type.

Windows 11 Lifecycle: End-of-Life and Support Status

Like every piece of software, Windows 11 has a lifecycle. “End of life” (EOL) is the point at which Microsoft stops shipping support and security updates for a given version — meaning any vulnerabilities or bugs discovered afterwards will no longer be fixed. Running a version past its EOL date leaves your PC exposed.

How to Lock a Windows PC (Without Logging Off)

A complete step-by-step guide to every way of locking your Windows 10 and Windows 11 computer — including locking input without turning off the screen.

How to Find Which Process Is Locking a File or Folder in Windows

Identify and release the program holding a file open so you can edit, move, or delete it — using Process Explorer, Resource Monitor, or the command line.

How to Clear Memory (RAM) Cache on Windows

Free up RAM and keep your PC responsive by clearing cached memory, closing memory-hungry processes, and tuning Windows for performance.

5 Ways to Disable USB Selective Suspend in Windows

Stop Windows from powering down USB ports to fix disconnecting devices — using Settings, Power Options, Device Manager, Command Prompt, or PowerShell.

4 Ways to Run Executable (.exe) Files Using PowerShell

Launch programs from PowerShell directly, with the call operator, Invoke-Expression, or Start-Process.

Check Ram Slots Windows

How to Enable Script Execution in Windows PowerShell

Change the PowerShell execution policy so your scripts can run — safely, using the right policy and scope.

How to Run Windows Update From the Command Line (CMD and PowerShell)

Check, download, and install Windows updates from Command Prompt or PowerShell — useful for scripts, remote management, and troubleshooting.

7 Tools to Monitor File and Registry Changes on Windows

See exactly what files and registry keys an installer or program changes, using snapshot and real-time monitoring tools.

Add Language Pack Powershell

How to Check for Listening (Open) Ports with Netstat and PowerShell

Find out which ports your Windows PC is listening on, and which programs are using them, using netstat and PowerShell.

How to Safely Clean Up the SoftwareDistribution Folder

Clear stuck Windows Update caches to fix update errors and reclaim disk space — the safe way.

How to Turn Off Windows Defender (and Turn It Back On)

Temporarily or permanently disable Microsoft Defender Antivirus on Windows 10 using Settings, Command Prompt, PowerShell, Group Policy, or the Registry — safely.

How to Delete Temporary Files on Windows 11 and 10

Free up disk space and keep Windows running smoothly by clearing temporary files — using Settings, Storage Sense, Disk Cleanup, or the command line.

Windows Sonic for Headphones: Enable Spatial Sound in Windows 10 and 11

Turn on Windows’ free spatial-sound engine for more immersive, 3D-positioned audio in games and movies.

How to Use Display Driver Uninstaller (DDU) for a Clean Graphics Driver Install

Completely remove NVIDIA, AMD, or Intel graphics drivers with DDU to fix display issues and stubborn driver installs.

How to Update Intel Drivers with the Intel Driver & Support Assistant

Use Intel’s free official tool to automatically detect, download, and install the latest drivers — including graphics — for your Intel hardware.