New
#11
ShowKeyPlus overwrites the "BBBBB" that represents the MAK key in other key finders, to display an explanatory phrase
Quote from the ShowKeyPlus OP
Note
Should your key display as BBBBB-BBBBB-BBBBB-BBBBB-BBBBB, it is a placeholder Windows inserts after activating a MAK key. The reason being, these keys can have thousands of activations (for which companies pay huge amounts) and should someone steal one, they could sell that same key to thousands and each will activate as if part of a company network - it's thus a security feature specific to MAK's.
MAK licences are not supposed to get the free upgrade, but I have seen some that have - so backup Win 7 and try the upgrade - worst case scenario restore Win 7 / purchase a Win 10 key.
Appleuser58 It depends on how old your Dell is? I ended up with a Dell Dimention 4600 with a 2.8ghz processor but it didn't meet the security requirements of the Win10 install. Find out what the specs are of these PC's and you might be in for a pleasant surprise. Get the manufacturers number off the tag to find out exactly what they spec out as.
As for locating keys I use Magic Jellybean Key Finder which is a free utility that works on everything from XP&prior to even Win10.