Origianl Title: window installer issue.Running windows xp sp3. I get this error message."The Windows Installer Service couldnot be accessed. This can occur if you are running Windows in Safe mode, orif the Windows Installer is not correctly installed. Contact your supportpersonnel for assistance"I have tried several solutions with know luck.

Hi,· What steps you have tried to fix the issue?· When exactly do you get this error message?· Did you make any software or hardware changes on your machine prior to this issue?Let’s follow these methods and check if it helps.Method 1You may follow this link and check if the issue persists.The Windows Installer Service Could Not Be Accessed" error message when you install a program in Windows XPMethod 2You may also download & install the latest Windows Installer 4.5 Redistributable & check if the issue persists.Hope the information helps. Please post back and let us know.RegardsDebleena SMicrosoft Answers Support EngineerVisit our Microsoft Answers Feedback Forum and let us know what you think.

I have tried both those methods with no luck. I have read several forums and uninstalled, reinstalled, changed permission, ran virus/malwhare scan etc. I don't believe that I made changes but did try a system restore. (no luck)Some of the symtoms I have include email not opening up. I can get to the email but when I click on it, nothing.I have a program called Speccy and when it runs I get "rpc server is unavailable. Can't download most things. I appreciate any help you can give me.

Hi,Let’s follow these methods and check if it helps.Method 1You may run System File Checker [SFC] scan on the computer which will replace the missing or corrupt files & check if the issue persists.a. Type ‘cmd’ in Start > Run box. Right click on cmd in the Program list and then select the option Run as administrator.b. Type the following command, and then press ENTER: sfc /scannowFor more information refer this link.Description of Windows XP and Windows Server 2003 System File Checker (Sfc.exe)Method 2You may also try giving permission to the registry keyHKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer.Important: This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base: 322756 (http://support.microsoft.com/kb/322756/) How to back up and restore the registry in Windows.a. Type ‘regedit’ in the Start > Run box, and then click OK. Locate the following registry key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer.b. i. Right click on it select Properties > Select Security tab. ii. Choose Edit button (if prompted to click continue, please click on continue). iii. Select Add type in ‘Everyone’ (without quotes). iv. Click on Check names & click Ok. v. Under Group or user name select everyone. vi. Under Permissions for system check allow full control. Hope the information helps. Please post back and let us know.RegardsDebleena SMicrosoft Answers Support EngineerVisit our Microsoft Answers Feedback Forum and let us know what you think.