====== Install Error 1603====== 
======(Rhino 5 for Windows) ======

> **Summary:** //How to fix the installation Error 1603//
> **Related installation help:** //[[installproblems|Troubleshooting Rhino 5 Installation]]//

=====Problem=====
A wide variety of problems can cause 1603 errors. Please follow all the steps below.

=====Answer=====
**Step 1: Perform Windows updates**
  - Locate and run the [[http://windowsupdate.microsoft.com/|Windows Update service]].
  - If there are any important updates to install, click **Update Now** to install the updates.  This process can take a long time.
  - If there is an error when trying to run the Windows Update installer, please read [[http://support.microsoft.com/kb/906602|Troubleshoot common problems with installing updates]].
  - If you resolve the Windows update problem and finish running [[http://windowsupdate.microsoft.com/|Windows Update service]], then move to Step 2.
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**Step 2: Install .NET 4.0 framework**
  - Open **Windows Explorer** and browse to the Rhino Installer DVD.
  - Open the **Installers\Prerequisites** folder.
  - Run the [[http://www.microsoft.com/en-us/download/details.aspx?id=17718|dotNetFx40_Full_x86_x64.exe]].
  - If the Microsoft .NET installer shows an error: 
    - Write down the error 
    - Proceed to Step 2
  - 64-bit Windows XP only:
    - Download and install [[http://www.microsoft.com/en-us/download/details.aspx?id=8483|Windows Installer 4.5 Redistributable]]
  - Skip to Step 3.
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**Step 3: Install Rhino**
  - Open **Windows Explorer**.
  - Download the most recent Rhino 5 installer here: [[http://www.rhino3d.com/download/rhino/5/latest?PageSpeed=noscript|Rhino 5 complete download]]
  - Double-click **Setup.exe** to start the Rhino 5 installation process.
  - If the Rhino 5 installer fails, save a copy of the log file to your desktop.
  - Proceed to Step 4.
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**Step 4: Uncompressing and Manually Installing**
  - If step 3 fails, the next step is to install the parts of Rhino manually.
  - Download and install the **[[http://www.7-zip.org/|7-Zip]]** application onto your system.
  - Right-click on Rhino 5 installer file.
  - From the menu, select **7-Zip** > **Extract to rh50......\**.
  - In the "**rh50......**" folder, browse to the **Installers** subfolder.
  - Double-click these *.msi files:\\ **rhino5setup_en-us_x64.msi** (Skip on 32-bit Windows systems.)\\ **rhino5setup_en-us_x86.msi**\\ **LanguagePack_en-us.msi** (and any other languages you wish to install)\\ **HelpMedia.msi**
  - If you experience errors during installation:
    - Write down any error numbers and messages you see.
    - Email the step you are on in this article and any errors to tech@mcneel.com.
  - Restart Windows if prompted.
  - Start Rhino 5.
  - In the Rhino 5 command line, type **ToolbarReset** then press Enter.
  - Close Rhino 5.
  - Start Rhino 5.
  - Installation is complete!
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**Still not working?**

That's frustrating. We're sorry! Please email any log files from Step 3 to tech@mcneel.com


{{tag>rhino5installationerror_en}}