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.

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page.

Right-click the file you want to zip, and then select Send to > Compressed (zipped) folder . To decompress files. Open File Explorer and find the compressed folder. To unzip the entire folder, right-click to select Extract All, and then follow the instructions.

Learn how to update drivers in Windows using Device Manager to update or reinstall a driver.

Windows Security has reputation-based protection that can help protect your PC from potentially unwanted applications. Potentially unwanted app blocking was first introduced in the Windows 10 May 2020 update and is turned off by default for enterprise and consumer customers.

When you try to start a Windows XP-based computer, you may receive an error message that resembles the following: A problem is preventing Windows from accurately checking the license for this computer. Error code: 0x nnnnnnnn. Note In the error message, nnnnnnnn represents the specific error code that you may receive.

Free up drive space in Windows. If your PC is running low on free space, you might not be able to install important Windows updates, and your PC’s performance may be affected. Here are some ways to free up space so you can keep your PC up to date and running smoothly.

In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders. Combine several files into a single zipped folder to more easily share a group of files.

Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

Windows 10. To find downloads on your PC: Select File Explorer from the taskbar, or press the Windows logo key + E. Under Quick access, select Downloads. Note: If necessary, go to the View tab, select Navigation pane, and ensure that Navigation pane is checked.