{"id":171,"date":"2011-08-18T15:33:39","date_gmt":"2011-08-18T14:33:39","guid":{"rendered":"https:\/\/www.uk-cheapest.co.uk\/support\/?p=171"},"modified":"2026-08-12T11:15:06","modified_gmt":"2026-08-12T10:15:06","slug":"wordpress-upgrade-fails-could-not-copy-file-varwwwwordpresswp-activate-php","status":"publish","type":"post","link":"https:\/\/www.uk-cheapest.co.uk\/support\/wordpress-upgrade-fails-could-not-copy-file-varwwwwordpresswp-activate-php\/","title":{"rendered":"Fix WordPress Update Errors: Could Not Copy File"},"content":{"rendered":"

WordPress troubleshooting<\/p>

A could not copy file error usually means WordPress cannot write to part of the site<\/h2>

The common causes are incorrect ownership or permissions, insufficient disk space, a security block or files left by a previous manual upload. Back up the site before changing anything.<\/p>

BACKUP<\/span>Create a restore point<\/strong>Files and database<\/small><\/article>
CHECK<\/span>Space and permissions<\/strong>Use Plesk tools first<\/small><\/article>
RETRY<\/span>One update at a time<\/strong>Confirm the site after each change<\/small><\/article><\/div><\/section>

Start with the exact error path<\/h2>

The path tells you which folder WordPress could not write to. An uploads error, plugin update and core update can have different causes, so keep the complete message.<\/p>

Check disk space<\/h3>

Open Plesk resource usage and confirm the subscription has enough space for an extracted update and temporary files.<\/p><\/article>

Check ownership and permissions<\/h3>

Use Plesk file tools or ask UKC to repair ownership. Typical permissions alone do not fix a file owned by the wrong system user.<\/p><\/article>

Check security events<\/h3>

Imunify or another security layer can block a suspicious write. Record the time and file so support can investigate safely.<\/p><\/article>

Check maintenance mode<\/h3>

If an update stopped unexpectedly, confirm the site is not left in maintenance mode before trying again.<\/p><\/article><\/div>

Safe recovery order<\/h2>
  1. 1<\/span>
    Back up<\/strong>

    Create a Plesk backup or confirm a usable restore point.<\/p><\/div><\/li>

  2. 2<\/span>
    Update WordPress core<\/strong>

    Complete one operation, then check the front end and admin area.<\/p><\/div><\/li>

  3. 3<\/span>
    Update plugins and themes<\/strong>

    Work in small batches so a failure can be identified.<\/p><\/div><\/li><\/ol>