How to use DISM

Deployment Image Servicing and Management (DISM) tool is a command-line tool that can be used to service and prepare Windows images, including those used for Windows PE, Windows Recovery Environment (Windows RE) and Windows Setup. DISM can be used to service a Windows image (.wim) or a virtual hard disk (.vhd or .vhdx). DISM comes built into Windows and is available through the command line or from Windows PowerShell.

To use the DISM, please follow these stpes:

  1. an elevated command prompt.
  2. Type the following command, and then press Enter. DISM.exe /Online /Cleanup-image /Restorehealth
  3. if your Windows Update client is already broken, use a running Windows installation as the repair source, or use a Windows side-by-side folder from a network share or from a removable media, such as the Windows DVD, as the source of the files. To do this, run the following command instead: DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:\RepairSource\Windows /LimitAccess

What’s Windows RE and WinReTools

Q: What’s Windows RE and WinReTools?

Chicagotech.net: Windows Recovery Environment (WinRE) is a recovery environment that can repair common causes of unbootable operating systems. By default, if you install Windows using media created from Windows Imaging and Configuration Designer (ICD), you’ll get a dedicated WinRE tools partition on both UEFI and BIOS-based devices, located immediately after the Windows partition. This allows Windows to replace and resize the partition as needed.

WinRE includes these tools:

  1. Automatic repair and other troubleshooting tools.
  2. Push-button reset, which enables your users to repair their own PCs quickly while preserving their data and important customizations, without having to back up data in advance.
  3. System image recovery which restores the entire hard drive.

How to improve PC performance in Windows 10

  1. Change the paging file size to improve performance.
  2. Free some disk space on your PC.
  3. Uninstall apps you don’t use anymore.
  4. Disable the programs running in background by using MSCONFIG so they don’t run when your PC starts.
  5. Scan any virus and malware.
  6. Check corrupted windows system files using The Deployment Image Service and Management Tool (DISM) and run System File Checker (SFC).