How to solve the problem that word 2010 suddenly cannot be undoed

The solution to the problem that Word2010 cannot be revoked can be solved by modifying the registry. The steps are as follows:

Open the registry editor. Press Win R, type regedit in the run box and click OK.

In the Registry Editor, expand to the following registry subkey: HKEY_CURRENT_USER\Software\Microsoft\Office\15.0\Word\Options

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

On the Edit menu, click Modify. In the Edit DWORD Value dialog box, under Base, click Decimal. Type a value between 0 and 100 in the Value box, click OK, and then exit Registry Editor. This value is the number of Undo (reversible) times. It is not recommended to set it too high. Generally, it can be set to 10. If it is too large, it will occupy more memory resources.

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