@johnathanhowell posted this: "You can quit the UI (right click the Sia icon in your system tray and click "Quit Sia"), then navigate to your Sia directory and delete the wallet folder. In windows, this is located at %APPDATA%\Sia-UI\sia\wallet, in Mac OS X this is located at ~/Library/Application Support/Sia-UI/sia/wallet, and on linux this is located at ~/.config/Sia-UI/sia/wallet.
Wallet deletion and importation features are planned for a future UI release."
@snakes imo, sia would be a terrible choice for medical records. For a distributed medical records system, I would want a, say, two-of-three multisig access. This would give me control over my records while allowing a recovering path for the day I lose my sig by mistake.
Additionally, medical records should be selective; e.g. you would allow some data to be released to an insurance company, but not everything.
If everything worked correctly, you should have exactly 2 files now, a small metadata file and a large data file. The data file should be about the size of the storage folder, and the metadata file should be about 1/200,000 the size of the data file.
If you have 4MB files remaining, that means that somewhere along the line some data got left behind. You can delete it now. It may have just not been cleaned up correctly, it doesn't necessarily mean the data was left behind or lost.
This is somewhat difficult because the miner is OpenCL, and there are no pure-go bindings for Open-CL that I know of (this may have changed over the past years). There's also no support for mining pools that we have directly.
This is on our longer-ish term roadmap, but it's not right around the corner.
I would add that as far as widespread acceptance goes this sort of UI stuff can easily be underestimated and is most often all that a lay user sees when forming an opinion. I can't think of another situation similar where you are expected to configure options without some degree of reference.
Anyway, just my ten peneth, hope it's of some use. :)