Well, it's been a few days since I re-installed the disk drivers and, unfortunately, this morning I had a new BSOD. The message this time says BAD_POOL_HEADER. Photo of screen is attached.
This time it occurred after the computer was in Sleep for a couple days. I turned it on, plugged it in and entered the password. Seemed to start OK. Walked away for about 15 minutes. When I came back a blue screen was waiting for me. It seemed to be "stuck" again at the "Initializing disk for crash dump ..." message. I gave it a few more minutes to say it was done with the dump (it didn't) & then gave up & powered it off & then back on.
When it came back up I was surprised to see a new file in the Minidump directory. I zipped and attached it, too. Using Nirsoft's BlueScreenView, I saw this additional information (using his "Blue screen in XP style") :
The problem seems to be caused by the following file: NDProxy.SYS
*** STOP: 0x00000019 (0x0000000000000020, 0xfffffa80010da440, 0xfffffa80010da440,
*** NDProxy.SYS - Address 0xfffff8800cd423b0 base at 0xfffff88005b48000 DateStamp
(I didn't copy the "boilerplate" text.) I am not very familiar with this tool or solving these problems - so there's likely more information there that I don't know how to extract.
To summarize what I do know:
(1) the errors seem to have been related to:
(2) the messages that have been showN include:
and some blue screens with no error message.
(3) The blue screens have in the past "advised' to run CHKDSK /F (which I did & it found no problems) and also to run the "driver verifier" (which I don't know what it is) or to "try enabling special pool" (don't know what this is either).
(4) Another possibly-related symptom: my computer is excruciatingly slow in many things related to Windows Explorer. Especially when trying to save or open a file from a browser, but also sometimes for something simple like listing contents of a directory.
Any help will be MUCH appreciated.