I need to reformat a Win7 machine but have not done that yet. I've reformatted WinXP a bunch of times -- is reformatting Win7 same/similar in your experience? Anything in particular I should be aware of? I know how to do a clean reformat (meaning I know to backup files, etc.) just wondering how Win7 compares to WinXP. Note - NOT a factory rollback; a full, clean reformat of the OS.