Not to begin at the beginning, to make it simple, I have come up a Windows 'Delayed Write Failed' error (test writing a 60KB file wasn't a problem
, running HDTune error scans lead to failure, Delayed Write Failed, and subsequent detection of bad blocks starting at different places depending on the scan - i.e' not reproducible
. I have previously tried this disk as an external USB disk with similar results).
A Microsoft kb article I was reading suggested changing the Policies for this disk to Disable Write Caching to circumvent this problem. So I go to the Disk Policies window for this disk, and deselect the enable Write Caching radio button, and click on 'OK'.
Then I noticed that having done this the disk temperature of this disk (HD1) in Speedfan was 0C which was silly
(it had been reading 32C or something remotely sensible.) [similarly with HDTune], so I thought I would change things back to get to the situation I was in before...but now the Policies window is greyed out, with seemingly 'optimize for performance' and 'enable write caching' selected ! So I can't change policies now.
Dumb_Question
19.June.2014
Compaq Presario S5160UK DT261A under XP/SP3
Processor - Celeron 2.7 GHz
Motherboard - MSI MS-6577 v2.1
RAM - 1GB + 512MB (1GB +1GB max) DDR PC2700
PSU - Octigen 300W model 10270PSOTG ('upgraded' from original Bestec 250W PSU [in 2011?])
Nvidia GeForce 6200 graphics card in AGP slot.