At the command prompt, type the following command, and then press ENTER: sfc /scannow. The sfc /scannow command will scan all protected system files, and replace corrupted files with a cached copy that is located in a compressed folder at %WinDir% \System32\dllcache. The %WinDir% placeholder represents the Windows operating system folder.

Windows 11 Windows 10. System File Checker is a utility in Windows that checks for problems with files on your computer. To run it, follow these steps: Make sure you've installed the latest updates for Windows, and then restart your machine. To find out more, read Update Windows.

To open Disk Management, right-click (or long-press) the Start button and select Disk Management. If you need help freeing up space on your PC, see Disk cleanup in Windows or Free up drive space in Windows. Disk Management in Windows helps you perform advanced storage tasks like initializing a new drive and extending or shrinking volumes.

Symptoms. On a computer that is running Windows 7, you use the Chkdsk.exe program to schedule a disk check during the next system startup. However, the disk check does not start correctly. Specifically, you may experience one of the following issues the next time that you start the computer:

An update is available that enables the Chkdsk.exe utility to repair a corruption error on the system volume in Windows 7 or in Windows Server 2008 R2 - Microsoft Support.

Windows 10. Optimizing your drives can help your PC run smoother and boot up faster. To optimize them: Select the search bar on the taskbar and enter defrag. Select Defragment and Optimize Drives. Select the disk drive you want to optimize. Select the Optimize button. Defragment your Windows 10 PC.

To create a system repair disc. To use the system repair disc. Start your computer from a Windows 7 installation disc or USB flash drive. You might need to start, or boot, your computer using the Windows 7 installation disc or a USB flash drive if you want to: Install or reinstall Windows 7. Recover Windows 7 from a serious error.

To create a partition or volume (the two terms are often used interchangeably) on a hard disk, you must be logged in as an administrator, and there must be either unallocated disk space or free space within an extended partition on the hard disk.