MRU Blaster cleans over 30,000 Most Recently Used listings from the Registry.
It can be scheduled to run to automaticly clean these entries, run manually.
For Office, it cleans, among other MRU entries (Office 2000 shown as an example):
Winword - Open Software\Microsoft\Office\9.0\Common\Open Find\Microsoft Word\Settings\Open\File Name MRU
Winword - Save As Software\Microsoft\Office\9.0\Common\Open Find\Microsoft Word\Settings\Save As\File Name MRU
Winword - Recent Files Software\Microsoft\Office\9.0\Word\Data
Excel - Open Software\Microsoft\Office\9.0\Common\Open Find\Microsoft Excel\Settings\Open\File Name MRU
Excel - Save As Software\Microsoft\Office\9.0\Common\Open Find\Microsoft Excel\Settings\Save As\File Name MRU
Excel - Recent Files Software\Microsoft\Office\9.0\Excel\Recent Files
Frontpage - Open Software\Microsoft\Office\9.0\Common\Open Find\Microsoft FrontPage\Settings\Open File\File Name MRU
Frontpage - Save As Software\Microsoft\Office\9.0\Common\Open Find\Microsoft FrontPage\Settings\Save As\File Name MRU
Frontpage - Recent lists Software\Microsoft\FrontPage\Explorer\FrontPage Explorer\Recent File List
Software\Microsoft\FrontPage\Explorer\FrontPage Explorer\Recent Page List
Software\Microsoft\FrontPage\Explorer\FrontPage Explorer\Recent Web List
Software\Microsoft\FrontPage\Explorer\FrontPage Explorer\Recently Created Servers
Software\Microsoft\FrontPage\Editor\Recently Used URLs
PowerPoint - Open Software\Microsoft\Office\9.0\Common\Open Find\Microsoft PowerPoint\Settings\Open\File Name MRU
PowerPoint - Save As Software\Microsoft\Office\9.0\Common\Open Find\Microsoft PowerPoint\Settings\Save As\File Name MRU
PowerPoint - Recent Files Software\Microsoft\Office\9.0\PowerPoint\Recent File List
Access - Open Software\Microsoft\Office\9.0\Common\Open Find\Microsoft Access\Settings\Open\File Name MRU
Access - Filename MRU Software\Microsoft\Office\9.0\Common\Open Find\Microsoft Access\Settings\File New Database\File Name MRU
Software\Microsoft\Office\9.0\Access\Settings
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