1.If the list or library is not already open, click its name on the Quick Launch. If the name of your list or library does not appear, click View All Site Content, and then click the name of your list or library. On the Settings menu , click List Settings, or click the settings for the type of library that you are opening. For example, in a document library, click Document Library Settings. 2.Under General Settings, click Versioning settings. 3.Do one of the following: For list items, to specify that versions are tracked, click Create a version each time you edit an item in a list in the Item Version History section. For files, to specify that only one type of version is tracked, click Create major versions in the Document Version History section. For files, to specify that both major and minor versions are tracked, click Create major and minor (draft) versions in the Document Version History section. 4.You can specify how many versions of items or files to keep...