Google have made available a clean-up tool within Google Chrome to remove threats such as adware, browser hijackers, fake system optimizers, & tracking software which may impacting your browsing experience.
This tool from ESET appears to be a revised version of the tool I discussed over 3 years ago. This blog post from Lawrence Abrams of Bleeping Computer provides more details of how to use it and what data it collects (and sends to Google who retain it for 14 days). If you are experiencing issues with Google Chrome, this tool is a good place to start your troubleshooting. If necessary a full reset can later be performed.
Separately with the European General Data Protection Regulation (GDPR) (written by Dr. Jessica Barker) due to come into effect on the 25th of May; you may be receiving emails from every online service or account that you have advising of their approach to the new regulation.
Most of the emails do not ask you to take any action however some will request you to review the information they have on file/record and update it if necessary. My advice for these emails is treat them as you would any email you receive regarding an online account, with caution.
If for example you receive an email purporting to be from PayPal but you don’t have a PayPal account, delete it! For the emails you do receive; if you suspect they are fraudulent, as per past advice from SANS call the company yourself and verify they are sending such emails and what if any actions they wish you to take? Be very careful if you do click on the links and think before you provide any personal information (in almost all cases you won’t have to enter anything).
I hope the above blog posts which I have provided a respectful shout out for provide a useful resolution if you are experiencing issues with Google Chrome and guidance on how to approach the large volume of email you are likely receiving.
Update: 24th May 2018
I received a call yesterday from one online account I hold stating they sent me an email yesterday relating to GDPR and asking me to update my preferences. While it was a genuine call (I did receive the email that very morning); I had not yet acted on it. The person even offered to call me back today to check I had updated my preferences. I explained I would update them and a call back would not be necessary.
This very much is the exception, no other online account have called me. As always; be cautious accepting calls and don’t provide any personal information to someone you do not know; they may not be who they claim to be.