You may try clearing Cent registry items with this: (Run with Administrator privileges, click the "Scan" button directly, delete all the found items)
https://static.centbrowser.com/software/...ner_en.zip
If it prompts that some registry items cannot be deleted, just ignore.
Then install to the current location again(or overwrite existing files for portable version), then set as default browser.
https://static.centbrowser.com/software/...ner_en.zip
If it prompts that some registry items cannot be deleted, just ignore.
Then install to the current location again(or overwrite existing files for portable version), then set as default browser.