One command I like to run on a Windows computer when it is experiencing trouble is regedit.exe as it launches the Registry Editor. So far, I have utilized the feature when I needed to do the following.
Recreate Network Profile
Sadly, a Network Profile can become corrupted and the only way to fix it is to use the Registry Editor to delete the profile from the ProfileList then append ‘.old’ to the profile and ask the user to log in and save a .txt file on the desktop to see if it erases once you log out. If the file remains, you can then copy the files from the appended ‘.old’ account so that the user can have access t them again. Keep in mind you will have to set up Outlook again so that they can access their email.
Restore Voicemail Playback
After 100 voicemails in .wav format have been listened to from emails sent by Cisco’s Unity Connection Viewmail, users will have a difficult time playing further messages as the cache is full. With the Registry Editor, you can look up the area where the .wav files are being saved and delete them all to restore playback functionality. I personally encourage my end-users to get rid of Cisco Unity Connection Viewmail as I have seen it cause other issues over the years while providing support.