If your server is on IIS and running WordPress and experiencing an issue where navigating to /wp-admin results in either a blank page or a 404 error, you may need an additional rule in your .htaccess file. Generally you’ll find that, assuming you’re set up properly, you can reach the admin section by appending /index.php to the URL, but who wants to do that every time?
The rule necessary tells the standard permalink rules to ignore the wp-admin directory when performing rewrites. Simply add the following condition to your .htaccess file:
Here is the .htacess file just upload it into wordpress root folder
