After installing Magento 2.1, when we check the frontend and backend theme, image is missing and it is not loading.
We may think it is a cache issue. But after clearing cache, the issue is still not fixed.
To solve this issue we need to do some changes in a file di.xml.
di.xml is located in app/etc. Open it.
Find this code,
<item name="view_preprocessed" xsi:type="object">Magento\Framework\App\View\Asset\MaterializationStrategy\Symlink</item>
Replace it with,
<item name="view_preprocessed" xsi:type="object">Magento\Framework\App\View\Asset\MaterializationStrategy\Copy</item>
Now clear the cache from var/cache folder and also remove the files from pub/static folder except .htaccess
Now refresh the page to see the effect.