Super User is a question and answer site for computer enthusiasts and power users. Join them; it only takes a minute:

Sign up
Here's how it works:
  1. Anybody can ask a question
  2. Anybody can answer
  3. The best answers are voted up and rise to the top

Possible Duplicate:
Deleting $NtUninstall Folders from Windows directory

In my Windows XP folder, there are many folders with names like $NtUninstallKB842773$ and light yellow folder icons.

What are these folders? It seems that they have to do with the uninstall process. Can I delete these folders safely?

share|improve this question

migrated from Nov 28 '09 at 2:02

This question came from our site for professional and enthusiast programmers.

marked as duplicate by Ƭᴇcʜιᴇ007, Daniel Beck, 8088, Nifle, slhck Nov 14 '11 at 16:59

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

These folders are part of the Windows update when Microsoft releases patches. They are stored in these folders as a backup place should you ever wish to uninstall them.

As long as you have no intention of uninstalling patches, then by all means go ahead and delete them.

share|improve this answer

They allow you to uninstall Microsoft hotfixes and Windows Updates. You should not delete them.

share|improve this answer

This folder contains data that is necessary if a hotfix needs to be removed - in this case, KB842773. The light yellow folder indicates that they are normally hidden. While you can safely delete them, if you do so, you will not be able to uninstall the hotfix in question. The folder name $NtUninstallKBxxxxxx$ refers to the Microsoft Knowledge Base item at (replace the xxxxxx with the actual number). The folder name may be blue; if it is, the folder and its contents are compressed with NTFS compression to save disk space.

share|improve this answer