Suddenly Everything isn't displaying C drive files, so now a search for "Dorothy Parker.odt" returns only the external hard drives:
though there is definitely a Dorothy Parker.odt file in C.
A search for C:\ Dorothy Parker.odt returns nothing:
If I specify C:\ almost all of the files returned are C:\Users\myname . .
and vast numbers of files on C:\ are not listed.
<<Check the Search menu. Do you have Enable Regex, enabled, for instance? >>
I didn't have Regex enabled. When I enabled it, entering C:\ in the search box returns no files.
<<Do you have a Filter enabled?>>
No, I have no filters.
I have nothing in Tools | Options -> Indexes => Exclude
Thanks therube,and Stamimail and NotNull
The problem has resolved itself by uninstalling and re-installing. That had been the first thing I did when the problem first arose, and I'm guessing it didn't work then because I didn't fully ininstall (with Revo Uninstaller) before re-installing.
In any case things are working fine now, many thanks for your help which enlightened me about several features
I again uninstalled and reinstalled and Everything's working fine now.
Oddly, I think the problem (this is just a wild guess, I'm an amateur at this stuff) may be associated with Windows 10's recent shutdown problem, in which WinKey-X-U-U causes restart instead of shutdown. That problem led me for several days to shut down with the power switch, which may have fouled up Everything's record-keeping. Just a guess
for several days to shut down with the power switch
Certainly not a good thing to do.
which may have fouled up Everything's record-keeping
Certainly possible.
What you might look to do if you end up in the same situation again, is instead of reinstalling, try a Forced Rebuild of the Index & see if that alone is enough to straighten things out.
(Tools | Options | Indexes -> Force Rebuild)
Definitely resolved: it was caused by the powered USB hub. If I power down the hub before shutting down, both the Everything problem and the WinKey-U-U shutdown problem disappear. All working fine now.