Juan,
.Net4 shouldn't be a problem, and otherwise you can uninstall it again afterwards.
About the firmware : it may be good to Google for what it's for, including what it may cause. Firmware on SSDs *is*important and is ubject to change because of inconsistencies with the OS. By now it could be about Windows 8 ...
FWIW : I always format the SSD NTFS 512 bytes (the most files in there are a few dozen bytes only).
What´s minimum value I should give to the CoverArt Resize Size to keep it in the Galleries without loss?.
IIRC the defaults as how XXHighEnd presents them. "Not a loss" is a big word, because this will be about "invisible" at the size you will look at it. But in the end it is about "zooming". So, a 10000 x 10000 image can be zoomed up to having one word in the screen (from the small printed booklet). But what for ?
HTH, Regards,
Peter