The amount of hard disk space occupied by these old, backed up files could easily reach megabytes. Are these backed up files useful to retain, or can they be deleted and disk space freed up? After you install an update and reboot your PC you should monitor your PC for a few days to see if everything is working properly, and that nothing "broke" during the update. All of the updates will be listed there by date. This is a command that goes by the nickname deep clean , and it scavenges the component catalog looking for components that are no longer being referenced.
Normally, the system automatically does component scavenging on a schedule maintenance task. The automatic scavenging has a policy of waiting 30 days before removing an unreferenced component, and it also has a self-imposed time limit of one hour. But the special command line above bypasses both the day grace period and the 1-hour timeout. Unreferenced components are removed immediately, and the task will run to completion, even if it takes more than an hour.
When a product is installed by using Windows Installer, a smaller version of the original. Over time, this folder may grow larger.
Every additional update installation for the installed products such as hotfixes, cumulative updates, or service pack setups also store their relevant. We do not support and do not recommend that you delete any files in this folder or replace them with files from another computer. Any update to the application relies on the information that is available in the files that are stored in this folder.
Without this information, the updates cannot perform their installations correctly. Typically, you do not have to manage this folder because it is managed by Windows. The typical size of this folder is determined by several factors such as the operating system version, what updates are available at the time, and so on. Therefore, it is difficult to provide a typical size expectation. If this folder uses lots of disk space, first install all available updates for the system, and then restart the computer.
To troubleshoot this issue if the size still remains large, follow these steps:. What Is WinSxS? Select the drive you want to clean up. Vista Winsxs Cleanup Step 4. Cause The Windows component store C:Windowswinsxs directory is used during servicing operations within Windows installations. Resolution The component store cannot reside on a volume other than the system volume because of the NTFS hard links. To remove the service pack files from a Windows installation, use the following in-box utilities: Windows Server Service Pack 2 installed: Compcln.
More information To reclaim additional disk space on your system, follow these steps: Clean Winsxs Server Select Start , and then in the Search Programs and Files text box, type Disk cleanup. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services. Privacy policy. Applies to: Windows 10, version and later versions, Windows 8. Windows updates and service packs may fail to install if there are corruption errors.
For example, an update might not install if a system file is damaged. This article is intended for Support agents and IT professionals. If you are home users and looking for more information about fixing Windows update errors, see Fix Windows Update errors. Then, install the Windows update or service pack again. Open an elevated command prompt. If you are prompted for an administrator password or for a confirmation, type the password, or select Allow.
Type the following command, and then press Enter. It may take several minutes for the command operation to be completed. However, 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:.
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