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HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSIServer (The screen shot for this step is listed below). Locate and then click the following registry key: (The screen shot for this step is listed below). In the Open box, type regedit, and then click OK. On the File menu, click Close to close the Search dialog box. The location of the file should be similar to the following example: C:\Windows\System32 (The screen shot for this step is listed below). (The screen shot for this step is listed below).Īfter the search is complete, make a note of the location of the Msiexec.exe file. In the File name box, type Msiexec.exe, and then click (The screen shot for this step is listed below).Ĭlick All files and folders. Note If you cannot complete the following steps, go to method 3.Ĭlick Start, and then click Search.
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To re-register Windows Installer, follow these steps. If they are, see your product documentation to complete these steps. Note Because there are several versions of Microsoft Windows, the following steps may be different on your computer.
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For more information about how to back up and restore the registry, see How to back up and restore the registry in Windows. Then, you can restore the registry if a problem occurs. For added protection, back up the registry before you modify it. Therefore, make sure that you follow these steps carefully. However, serious problems might occur if you modify the registry incorrectly. This section, method, or task contains steps that tell you how to modify the registry. Office will be installed, and you will not be prompted for the product key when the programs start. When you are prompted to enter the product key, type the product key, and then click Next.
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(The screen shot for this step is listed below).Ĭlick OK, and then click Restart to restart the computer. On the Services tab, click to select the check box that is next to Windows Installer. In the Open box, type msconfig, and then click OK.
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Method 1: Use the Msconfig tool to confirm that the installer service is runningĬlick Start, and then click Run. To resolve this problem, use one of the following methods. This problem may occur if the Windows Installer files are damaged or missing. "The Windows Installer Service could not be accessed." Cause
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When you try to install Microsoft Office, you may receive an error message that is similar to the following: For more information about this change, read this blog post. Office 365 ProPlus is being renamed to Microsoft 365 Apps for enterprise.
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