Error Code 800F0818

Question

Everytime I try to do a windows update, I keep getting this error code.  I was wondering how to fix this problem.  It prevents me from updating anything from the microsoft updates.  It has been occuring for about 2 weeks now, I have tried to search on-line for information and nothing appears.

Any adive would be great.

Cheers,

Answer 1

The error code 80070005 usually means that you do not have enough permission to install updates.

First please confirm you have logged on an account with administrative privileges.

If the issue still occurs, lets’ try the following method to reset the permissions:

1. Download the subinacl.msi file from the following link and save the installation patch onto the Desktop:

http://www.microsoft.com/downloads/details.aspx?FamilyID=e8ba3e56-d8fe-4a91-93cf-ed6985e3927b&displaylang=en#AffinityDownloads

2. Go to the Desktop and double click the downloaded file.
3. Select the C:\Windows\System32 folder as the Destination Folder during the installation. Later we will use this tool to reset the permission settings on the current machine.

**Note:**If the UAC (User Account Control) window is prompted for permission to continue, please click Continue.

4. Click Start, in the Start Search bar, type: "notepad" (without quotes) and press Enter.
5. Copy the following commands and then paste them into the open Notepad window:

@echo off

subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=administrators=f

subinacl /subkeyreg HKEY_CURRENT_USER /grant=administrators=f

subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=administrators=f

subinacl /subdirectories %SystemDrive% /grant=administrators=f

subinacl /subkeyreg HKEY_LOCAL_MACHINE /grant=system=f

subinacl /subkeyreg HKEY_CURRENT_USER /grant=system=f

subinacl /subkeyreg HKEY_CLASSES_ROOT /grant=system=f

subinacl /subdirectories %SystemDrive% /grant=system=f

@Echo =========================

@Echo Finished.

@Echo =========================

@pause

6. After pasting the above commands, please close the Notepad window. Choose Save when you are prompted to save the file. Type "reset.bat" as the file name and choose Desktop from the left panel as the save location.
7. Refer to the Desktop and right click the reset.bat file, and then choose "Run as administrator."
8. You will see a DOS-like window processing.

**Note:**It may take several minutes. Please be patient. When it is completed, you will be prompted with the message: "Finished, press any key to continue".

Try to install the updates again.

This issue can be also caused by third-party security programs such as firewalls and anti-virus software. You can disable or remove them to check the issue.

If the issue persists, please let me know which updates cannot be installed. Please let me know their names and IDs.

Let us know how it goes.

Answer 2

I've tried all of these suggestions, and I've had no luck.  I am very frustrated.

Answer 3

Hello Jkoh21,

Please refer to the following Microsoft KB article to download the **Windows Installer CleanUp Utility**.

http://support.microsoft.com/kb/290301

When you go to download it do the following:

1. Select to Save and put it on your desktop
2. Now right click msicuu2.exe (for Windows Installer CleanUp Utility) and select to Run as administrator.
3. Follow the wizard to install the Windows Installer CleanUp Utility

Now click Start>All Programs>Windows Installer CleanUp Utility (provide administrative rights if prompted). Now try to locate and remove the .Net Framework 3.5 software, after doing so restart your computer.

Now download and install the NET Framework 3.5, and the update:

1. **Microsoft .NET Framework 3.5**

http://www.microsoft.com/downloads/details.aspx?FamilyId=333325FD-AE52-4E35-B531-508D977D32A6&displaylang=en

---

2.**Microsoft .NET Framework 3.5 Service Pack 1**

http://www.microsoft.com/downloads/details.aspx?familyid=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=en

---

3.**Microsoft .NET Framework 3.5 Family Update for Windows Vista x86, and Windows Server 2008 x86**

http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=b9de7937-2c12-4f16-ad66-a31b83931953

***Note:***Make sure that you have .NET Framework 2.0 and 3.0 with all proper updates before attempting to get a successful install of 3.5.

Hope this helps.

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Answer 4

I ran the same script and am still getting the error code 800F0818 when trying to install the .net framework 3.5 SP1 and .net framework 3.5 family update (KB951847) x86

Please advise, thanks.

Answer 5

Ran the script tool and continued getting same error for installing vista sp1.

I then disabled my SAV and windows fwall and same thing....any ideas?

thks