If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Open File Explorer and find the compressed folder. To unzip the entire folder, right-click to select Extract All, and then follow the instructions. You can also select Extract All from the command ribbon. To decompress a single file or folder, double-click the compressed folder to open it.

The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Zip and unzip files. Windows 10 Windows 8.1. Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders.

Set your default programs. Associate a file type with a program. Change AutoPlay settings. Set default programs for this computer. Learn how to change the programs Windows 7 uses to open certain types of files.

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders.

Open File Explorer and find the compressed folder. To unzip the entire folder, right-click to select Extract All, and then follow the instructions. You can also select Extract All from the command ribbon. To decompress a single file or folder, double-click the compressed folder to open it.

How to install programs from online sources on Windows 10. From the internet: You should download and install programs only from trusted publishers and retail websites. In your web browser, select the link to the program. Select Save or Save as to download the program.

You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

Use the Add a language feature to install another language for Windows 11 to view menus, dialog boxes, and supported apps and websites in that language. To do this: Select Start > Settings > Time & language > Language & region.