How to Fix Problem of 502 Bad Gateway

502 Bad Gateway problems symptom can include program lock-ups, slow PC performance, system freezes, startup and shut down problems, installation errors, and hardware failure. It is essential to repair this error in the shortest time.

• Sometimes, when you are trying to update your windows system, some essential dll files or registries files may be missing or corrupted.
• Install or uninstall application in a bad way and infected with Virus or Trojan.
• System drivers are out-of-date or installed wrongly.

SmartPCFixer is a good system repair tool which can clean and repair problems of your operating system automatically. It's 100% safe and clean.

This software is not only good for solving 502 Bad Gateway issues, but also is able to scan, check your windows errors periodically.

Benefits of SmartPCFixer

1. Remove the application which you installed recently.

Run SmartPCFixer, choose System Tools, and click Uninstaller, then choose the program you have just installed.

2. Update your Unknown to the latest version.

For windows 7 users:

Click Start, and search windows update as the pictures below:

Click check for update, and update all the important updates which windows recommend for you.

3. System restore is always the best way to remove 502 Bad Gateway problems.

Please visit Microsoft website to

Windows 10 system restore:

http://windows.microsoft.com/en-us/windows-10/windows-10-recovery-options

Windows 7 8 system restore:

http://windows.microsoft.com/en-us/windows-8/restore-refresh-reset-pc

1. You must run as an administrator, no matter what steps you will do about your PC.

2. Depending on your computer windows system, the above steps may be slightly different, but the basic process is mostly the same.