The Repair/re image page could appear due to adware installed on your computer. It could have probably got installed when you downloaded some software or some other data from internet. Note that all the downloads from internet are not trusted ones and they can install virus / adware in your computer without your knowledge. This mainly happens when you download files with extension .exe or .zip. When you install or unzip these files, it installs some virus / adware also in your system in the background which we will get to know only after getting the unwanted pop-ups.
Now, to get rid of this I would suggest to do the following things.
1. Install an antivirus software like Kaspersky, Mcafee.,etc., and do a deep scan of your system. Clear all those suspicious data / files which it lists in the report.
2. Clear your system temporary files with some Cleanup software and clear the browser cache, cookies.,etc, from all the browsers in your system.
3. Always download software's from reputed sites. Do not download software's which are not trusted ones.