Error code 0-1011, 30088-1015, 30183-1011, or 0-1005 when installing Office

You might see these errors if you're having a network connection issue or if your hard drive is running out of space. Here are 7 things you can try to fix the problem. It's also a good idea to free up drive space first before you try to fix the problem. We’ve listed the most common solutions first so do the steps in order, starting with uninstalling and then reinstalling Office.

Could not install message

Free up space on your hard drive

  1. Click this easy fix button to uninstall and completely clean up your Office installation.

    Easy fix download button indicating an automated fix is available
  2. Select your browser from the drop-down list to see the remaining steps.

    At the bottom of the browser window, select Open to open the O15CTRRemove.diagcab file.

    Select Open to open the O15CTRRemove.diagcab easy fix tool

    If the file doesn’t open automatically, choose Save > Open Folder, and then double-click the file (it should start with "O15CTRRemove") to run the easy fix tool.

    1. The Uninstall Microsoft Office wizard launches. Select Next and follow the prompts.

    2. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect. Select Next.

    3. After restarting your computer, you can try installing Office again.

      To reinstall Office, see Install Office on your PC or Mac and follow the steps for your Office plan.

    In the lower-lower left corner select the o15CTRRemove file and from the drop down, select Show in folder.

    From the dropdown, select Show in folder

    Double-click the download, o15CTRRemove to run the easy fix tool.

    1. The Uninstall Microsoft Office wizard launches. Select Next and follow the prompts.

    2. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect. Select Next.

    3. After restarting your computer, you can try installing Office again.

      To reinstall Office, see Install Office on your PC or Mac and follow the steps for your Office plan.

    Select Save File, and then OK.

    Save O15CTRRemove.diagcab file in Firefox

    In the upper-right browser window, select Show all downloads. In the Library, select Downloads > O15CTRRemove.digicab, and then select the folder icon. Double-click the O15CTRRemove.digicab.

    1. The Uninstall Microsoft Office wizard launches. Select Next and follow the prompts.

    2. When you see the Uninstallation successful screen, follow the prompt to restart your computer for the changes to take effect. Select Next.

    3. After restarting your computer, you can try installing Office again.

      To reinstall Office, see Install Office on your PC or Mac and follow the steps for your Office plan.

The Office offline installer may help bypass potential proxy, firewall, antivirus, or Internet connection issues that might occur during an Office 2016 installation.

How you use the offline installer depends on which Office product you have. See Office for home and Office for business plans and then select from the table below.

Office product

Do this

Your Office product is under Office for home

Use the Office 2016 offline installer

Your Office product is under Office for business

Contact your admin.

If you're the admin, you can Contact Office 365 for business support for help.

Admins can also use the Office Deployment Tool to download the Office software to your local network. You can then deploy Office by using the software deployment method you typically use.

If you use your device both at home and at work, try turning off the proxy settings in Microsoft Edge or Internet Explorer before you install Office. If you’re using a different browser, check their help to find out how to turn off proxy settings.

Microsoft Edge
  1. Click the Start button Windows Start button in Windows 8 and Windows 10 (lower-left corner), and choose Settings.

  2. Click Network & Internet, click Internet options, and then click Settings to the right of Choose Settings to configure a proxy server for a connection.

  3. Clear the checkbox to turn off any proxy settings.

  4. Click OK.

Internet Explorer 7, 8, 9, 10, or 11

Note: There might be more proxy settings that you need to bypass. If this doesn't work, and you’re installing Office from work or school, check with your IT department for more information. For IT administrators, please see Office 365 URLs and IP address ranges.

For information about how to turn off your antivirus software, check your antivirus manufacturer's website. Uninstalling your antivirus software may also help. Don't forget to reinstall it after Office is finished installing and if you turned it off, be sure to turn it on again.

If you're not sure which antivirus software you have, use the following instructions to get to Control Panel to find the name of your antivirus software.

Tip: Windows 10 comes with default antivirus software, Windows Defender. If you determine that you're using it, select the Start button > Settings > Update & Security, and then select Windows Defender on the left. Slide the button to Off. Remember to turn it On again.

Windows 10
  1. Go to Control Panel by right-clicking the Start button Windows Start button in Windows 8 and Windows 10 (lower-left corner), and choosing Control Panel.

    Options and commands list see after pressing Windows logo key + X

  2. Do one of the following:

    • In Category view, select System and Security > Security and Maintenance, and then select the down arrow next to Security.

    • In Large icons or Small icons view, select Security and Maintenance, and then select the down arrow next to Security.

    If Windows can detect your antivirus software, it's listed under Virus protection.

Windows 8.1
  1. Go to Control Panel by right-clicking the Start button Windows Start button in Windows 8 and Windows 10 (lower-left corner), and choosing Control Panel.

    Options and commands list see after pressing Windows logo key + X

  2. Do one of the following

    • In Category view, select System and Security > Action Center, and then select the down arrow next to Security.

    • In Large icons or Small icons view, select Action Center, and then select the down arrow next to Security.

    If Windows can detect your antivirus software, it's listed under Virus protection.

Windows 7
  1. Go to Control Panel by choosing the Start button Windows 7 Start button (lower-left corner), and choosing Control Panel.

  2. Do one of the following

    • In Category view, select System and Security > Action Center, and then select the down arrow next to Security.

    • In Large icons or Small icons view, select Action Center, and then select the down arrow next to Security.

    If Windows can detect your antivirus software, it's listed under Virus protection.

If you're using a firewall from another manufacturer, visit the manufacturer's website for information about how to temporarily disable the firewall. For Windows Firewall, please see below.

Windows 10 Windows 8.1 Windows 7 Windows Vista

Use a wired connection to the Internet, if possible. If this doesn't work, try connecting at a different location, such as a friend's house or a wireless hotspot.

If you're trying to install at work or at school, the network might be limited in a way that won't allow Office to install. Your IT department might be able to help you handle these limitations. If not, you could also take your computer home to install Office. After it's installed, you'll be able to use it at work or school as if you had installed it there.

Still having trouble?

Contact Microsoft for help

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