[Merlin Cori]

примерно так

Here is a simple and safe method to remove any desired item from RUN history / MRU (Most Recently Used) list:

1. Type regedit in RUN dialog box and press Enter. It'll open Registry Editor.
2. Now go to following key:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\R unMRU
In right-side pane, you'll see various String values with the name a, b, c, etc and their value will be set to the command which you entered in RUN dialog box:
3. You just need to delete the String value which contains the command which you want to remove from RUN history list. e.g. if you want to remove "msconfig" command from RUN history, then delete the "b" String value.
4. That's it. Now the deleted command will no longer appear in RUN MRU list.