Hi I have windows 7 proffessional edition. In my D driver, there are interesting named folders. What are theese? and this is folders content how can I delete theese folders and files. windows is not allowed to delete them

These look like possible driver install folders. Easy fix is to just hide the folders. If you are unable to delete the folders even after a reboot windows is using the files.If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". The Internet? Is that thing still around? (Homer Simpson)

They are temporary folders used by Windows Update. If you look in the folders, you will see files with KB######. They can be removed without issue.If you found this post helpful, please give it a "Helpful" vote. If it answered your question, remember to mark it as an "Answer". Rich Prescott | MCITP, MCTS, MCP Blog | Twitter: @Arposh | Powershell Client System Administration tool

when I try the folder this warning is appered

That is fine. As the folder is not located inside of your user profile, Windows requires administrative access to delete the folder. Your user account does not currently have that access and so Windows is asking you if you are sure you want to Continue.If you found this post helpful, please "Vote as Helpful". If it answered your question, remember to "Mark as Answer". Rich Prescott | MCITP, MCTS, MCP [Blog] Engineering Efficiency | [Twitter] @Rich_Prescott | [Powershell GUI] Client System Administration toolkit

I simply ignore those folders, they are used by Windows updates and installers etc I have tested removing them in a VM and they can be safely removed without problem. They are simply temp files that seem to have not been removed when done with. Sloppy programming. Windows MVP, XP, Vista, 7. Expanding into Windows Server 2008 R2, SQL Server, SharePoint etc. My page on Video Card Problems is now my most popular landing page. My Page on SSD is now #2. See my gaming site for game reviews etc. Developer | Windows IT | Chess | Economics | Hardcore Games | Vegan Advocate | PC Reviews