Then it looks pukka.
It's a program that runs on your PC, rather than just a firmware code file. I guess it was just cleaning itself up a bit. Temp Internet Files don't matter and your Browsing History, if that's what you mean, is not that important.
1999: Freeserve 48K Dial-Up => 2005: Wanadoo 1 Meg BB => 2007: Orange 2 Meg BB => 2008: Orange 8 Meg LLU => 2010: Orange 16 Meg LLU => 2011: Orange 19 Meg WBC