Open Command Prompt and run ipconfig /flushdns.
Step by Step
- Open Start and search for Command Prompt.
- Open Command Prompt.
- Type ipconfig /flushdns.
- Press Enter.
- Windows should report that the DNS Resolver Cache was successfully flushed.
If That Doesn't Work
- Flushing your computer's DNS cache does not clear caches at your router, ISP, or public DNS resolver.
- If a DNS change still appears old, wait for the relevant DNS TTL/cache period or test against another resolver.