There is a lot of ads coming from Idontknowhwhere in my desktop

@Kasparov2001 ,

Try . . .

Clear your browsing data

In a New Window, go to:

“brave://settings/clearBrowserData” (no quotes)

Click on “Advanced”

Change “Time range” to “All time”

Select all three of:

  • Cookies and other site data
  • Cached images and files
  • Site and Shields Settings

and click the “Clear data” button.

Clear host cache, close idle sockets, and flush socket pools

In a New Window, go to:

“brave://net-internals/#dns” (no quotes)

and click on “Clear host cache”

In a New Window, go to:

“brave://net-internals/#sockets” (no quotes)

and click on both

  • “Close idle sockets”
  • “Flush socket pools”

Restart Brave Browser.

Above steps suggested elsewhere, by @Rethanis

Another possibility, pertaining to DNS over HTTPS. Ref.:

https://www.cloudflare.com/learning/dns/dns-over-tls/” (no quotes)

You might, for testing purposes, look over the “Secure DNS” settings:

“brave://settings/security?search=secure” (no quotes)

Perhaps try some of the Custom Providers.

Given that the source for the webpage, is Google, there may be some Google domain(s) not yet allowed by your Brave Browser Shields - javascript setting(s). You might make entries of (Allow) some of the Google sources, regardless of whether or not: you have been allowing javascript.

In order to learn, what Google sources may be involved, you might use the Developer Tools > Network tool . . . and find possible sources for some of the downloaded items that you observe when Brave Browser visits the website of interest.

How to use Developer Tools > Network

https://www.lifewire.com/web-browser-developer-tools-3988965

https://developer.chrome.com/docs/devtools/network/reference/

https://docs.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/

PS. How to flush DNS cache in Windows OS:

https://www.wikihow.com/Flush-DNS

PS. Similar problem at: