I dont know if this is a bug or a consequence of changes made by Microsoft and the interaction with ccleaner 64 bit.
ccleaner 3.26.1888 (64-bit) and many previous editions appears to resize office 2010 dialog boxes without reporting what it is changing. I have traced this (FINALLY !) to <ccleaner> Windows Explorer-Other Explorer MRUs.
Uncheck that box, and the Office file-open-dialog boxes do not resize.
I cannot tell right now if this is specific to Win 7 XP Home SP1 and Ofc 2010, since my other computers still run XP and 2003. But allowing the MRUs to clear causes the dialog windows (like File-Open) to resize back to their defaults. This is true even if Office 2010 box on the ccleaner application list is cleared.
An investigation into registry changes caused by ccleaner on win 7 home premium SP1 shows this key
[HKEY_USERS\S-1-5-21-2452175375-133370985-4051299857-1001\Software\Microsoft\Windows\CurrentVersion\Explorer\ComDlg32]
being removed. Restoring that key puts the open-file dialog boxes back into office 2010.
What I do not know is whether this is a Win 7 change or an Ofc 2010 change.
And I do not know the consequence of the "other explorer MRU" checkbox in ccleaner
BUT
ccleaner deletes registry entries and does not show them. Can we get this fixed?
Can we get a separate checkbox for COMDLG32 in explorer? Or is this the only entry deleted by the checkbox "other explorer MRUs?"
Thanks