Word2010 Undo button Failure, CTRL + Z failure solution

1. Open Registry Editor. Press Win+r, type regeditin the Run box, and then click OK.

2. In Registry Editor, expand to the following registry subkey: Hkey_current_user\software\microsoft\office\14.0\word\options

3. On the Edit menu, point to New, and then click DWORD Value. Select Change "New Value #1", type undohistory, and then press OK.

4. Modify the Edit DWORD value and click Decimal under Cardinality. In the Value box, type a value between 0 and 100, click OK, and then quit Registry Editor.

This value is undo (revocable) Number of times, not recommended to set too large, usually set to ten . Too much memory resources are occupied by the Assembly.

Word2010 Undo button Failure, CTRL + Z failure solution