diff --git a/Dockerfile b/Dockerfile
index 3c337c466..93afb73f9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,6 @@ RUN install-php-extensions \
         redis \
         memcached \
         apcu \
-        wincache \
         gd; \
     \
     a2enmod rewrite; \
diff --git a/application/config/config.sample.php b/application/config/config.sample.php
index 7de20dead..df26a9eea 100644
--- a/application/config/config.sample.php
+++ b/application/config/config.sample.php
@@ -409,7 +409,6 @@ $config['error_views_path'] = '';
 |     - 'redis'     : Redis in-memory cache (requires Redis server & extension)
 |     - 'memcached' : Memcached (requires Memcached server & extension)
 |     - 'apcu'      : APCu in-memory cache (requires APCu extension)
-|     - 'wincache'  : Windows Cache (requires WinCache extension)
 |
 | 'cache_backup'
 |     Fallback adapter if primary adapter fails or is unavailable.
diff --git a/system/libraries/Cache/Cache.php b/system/libraries/Cache/Cache.php
index 3bd65daab..797c7af42 100644
--- a/system/libraries/Cache/Cache.php
+++ b/system/libraries/Cache/Cache.php
@@ -55,13 +55,11 @@ class CI_Cache extends CI_Driver_Library {
 	 * @var array
 	 */
 	protected $valid_drivers = array(
-		'apc',
 		'apcu',
 		'dummy',
 		'file',
 		'memcached',
 		'redis',
-		'wincache'
 	);
 
 	/**
diff --git a/system/libraries/Cache/drivers/Cache_wincache.php b/system/libraries/Cache/drivers/Cache_wincache.php
deleted file mode 100644
index bd18148f1..000000000
--- a/system/libraries/Cache/drivers/Cache_wincache.php
+++ /dev/null
@@ -1,218 +0,0 @@
-<?php
-/**
- * CodeIgniter
- *
- * An open source application development framework for PHP
- *
- * This content is released under the MIT License (MIT)
- *
- * Copyright (c) 2019 - 2022, CodeIgniter Foundation
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * @package	CodeIgniter
- * @author	EllisLab Dev Team
- * @copyright	Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
- * @copyright	Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
- * @copyright	Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
- * @license	https://opensource.org/licenses/MIT	MIT License
- * @link	https://codeigniter.com
- * @since	Version 3.0.0
- * @filesource
- */
-defined('BASEPATH') OR exit('No direct script access allowed');
-
-/**
- * CodeIgniter Wincache Caching Class
- *
- * Read more about Wincache functions here:
- * https://www.php.net/manual/en/ref.wincache.php
- *
- * @package		CodeIgniter
- * @subpackage	Libraries
- * @category	Core
- * @author		Mike Murkovic
- * @link
- */
-class CI_Cache_wincache extends CI_Driver {
-
-	/**
-	 * Class constructor
-	 *
-	 * Only present so that an error message is logged
-	 * if APC is not available.
-	 *
-	 * @return	void
-	 */
-	public function __construct()
-	{
-		if ( ! $this->is_supported())
-		{
-			log_message('error', 'Cache: Failed to initialize Wincache; extension not loaded/enabled?');
-		}
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Get
-	 *
-	 * Look for a value in the cache. If it exists, return the data,
-	 * if not, return FALSE
-	 *
-	 * @param	string	$id	Cache Ide
-	 * @return	mixed	Value that is stored/FALSE on failure
-	 */
-	public function get($id)
-	{
-		$success = FALSE;
-		$data = wincache_ucache_get($id, $success);
-
-		// Success returned by reference from wincache_ucache_get()
-		return ($success) ? $data : FALSE;
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Cache Save
-	 *
-	 * @param	string	$id	Cache ID
-	 * @param	mixed	$data	Data to store
-	 * @param	int	$ttl	Time to live (in seconds)
-	 * @param	bool	$raw	Whether to store the raw value (unused)
-	 * @return	bool	true on success/false on failure
-	 */
-	public function save($id, $data, $ttl = 60, $raw = FALSE)
-	{
-		return wincache_ucache_set($id, $data, $ttl);
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Delete from Cache
-	 *
-	 * @param	mixed	unique identifier of the item in the cache
-	 * @return	bool	true on success/false on failure
-	 */
-	public function delete($id)
-	{
-		return wincache_ucache_delete($id);
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Increment a raw value
-	 *
-	 * @param	string	$id	Cache ID
-	 * @param	int	$offset	Step/value to add
-	 * @return	mixed	New value on success or FALSE on failure
-	 */
-	public function increment($id, $offset = 1)
-	{
-		$success = FALSE;
-		$value = wincache_ucache_inc($id, $offset, $success);
-
-		return ($success === TRUE) ? $value : FALSE;
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Decrement a raw value
-	 *
-	 * @param	string	$id	Cache ID
-	 * @param	int	$offset	Step/value to reduce by
-	 * @return	mixed	New value on success or FALSE on failure
-	 */
-	public function decrement($id, $offset = 1)
-	{
-		$success = FALSE;
-		$value = wincache_ucache_dec($id, $offset, $success);
-
-		return ($success === TRUE) ? $value : FALSE;
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Clean the cache
-	 *
-	 * @return	bool	false on failure/true on success
-	 */
-	public function clean()
-	{
-		return wincache_ucache_clear();
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Cache Info
-	 *
-	 * @return	mixed	array on success, false on failure
-	 */
-	public function cache_info()
-	{
-		return wincache_ucache_info(TRUE);
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * Get Cache Metadata
-	 *
-	 * @param	mixed	key to get cache metadata on
-	 * @return	mixed	array on success/false on failure
-	 */
-	public function get_metadata($id)
-	{
-		if ($stored = wincache_ucache_info(FALSE, $id))
-		{
-			$age = $stored['ucache_entries'][1]['age_seconds'];
-			$ttl = $stored['ucache_entries'][1]['ttl_seconds'];
-			$hitcount = $stored['ucache_entries'][1]['hitcount'];
-
-			return array(
-				'expire'	=> $ttl - $age,
-				'hitcount'	=> $hitcount,
-				'age'		=> $age,
-				'ttl'		=> $ttl
-			);
-		}
-
-		return FALSE;
-	}
-
-	// ------------------------------------------------------------------------
-
-	/**
-	 * is_supported()
-	 *
-	 * Check to see if WinCache is available on this system, bail if it isn't.
-	 *
-	 * @return	bool
-	 */
-	public function is_supported()
-	{
-		return (extension_loaded('wincache') && ini_get('wincache.ucenabled'));
-	}
-}