We need to upgrade OS from 2008 to 2012 R2 on Snow master server. All the SNOW application is hosted on E drive. Need to ask if any sort of impact will be there if C is formatted wholesomely with new OS.
Yes there will be a lot of things happening if you format C: and install a new OS even though the Snow applications are untouched on the E:. (As you mention formatting I assume that you want to erase C: and start over? )
If you do format C: you will have to reinstall the applications. The databases will be safe on the SQL server though, given that you have a separate SQL server.
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