Alternatively you can back up your data (carefully with multiple copies) and reformat the disks and install from scratch being careful with options!
I have to say I also really hate people who provide installers with pre-ticked options which give you extra apps or change browser preferences etc. Java you know you are a prime offender you jerks! Older and wiser these days I watch those installers very closely!
Of course all this also does not focus with what is happening here with patient information that the patient may not know is being shared for secondary uses. I wonder what consent has been sought for this from the patients and how confident we can be the anonymisation really works. This really needs to happen - if it must - under external ethical and technical review at least and with proper patient consent! Does anybody know if, and how, patients are informed that their data is being plundered?