It's 4:49 am. I've not yet been to bed and I don't imagine I will until this evening. Last night our computer problem reappeared and we lost sight of the E drive with all kinds of useful (some even necessary) data files. I've been searching (almost) aimlessly for a solution all night; uninstalling a suspect AVG update, replacing AVG with an anti-virus programme called Kaspersky, running the new software, finally getting checkdisk to run on the E drive ... sitting here, in front of the screen, watching the programmes run. I knew there were just over 118,000 files on the E drive. Now I know there are 50,000,000 free clusters that get checked (I've no idea what a cluster might be ... 0 / 1 pairings? Maybe). And I know there are almost 1,000,000 files on the PC in three drives: C, E and F.
Twenty minutes ago I took the risk of re-starting the computer. That's been problematic for days now. It has seldom re-booted. This morning though it worked first time and when I checked windows explorer all the drives could be seen. If I fixed the problem I have no idea how I managed it. Luck, ignorance and stubbornness. At least it's working ... for now.