There is a risk. You see, wiping her data, her programming from when she was created from the first time, means wiping her memories of GLaDOS. That is the easiest and best way to do it.

However, I can attempt to do so while keeping her memories, but... it may have unforeseen side effects.

[ Programming and coding is one thing, but when it's something as complex as Vivian, a turret with a mind this intricate, it is way different.

He... doesn't want to do something wrong. This can't backfire. ]