I've duplicated the contents of the email I've just sent you, viz:
Whilst running Check Disk, it repaired the damaged sectors and the computer then rebooted.
Unfortunately, nothing has changed, so it still won’t load any of the Flash Drives that still show up in Device Manager, and says that drivers are not installed.
These will also will also not update when I try updating the drivers, and says try contacting the Flash Drive manufacturer.
The USB Flash Drives that aren't recognised are:-
3 x SanDisk Micro Cruzer's, which I have used before on this computer, which I bought in December 2013.
The 2 new ones I have recently bought which are iBoutique Elite Hi-Speed USB Flash Drive USB 2.0.
The only one which does open and work on my computer is a Peak USB 2.0!
I am the only user of this computer and the Administrator.
I have created a second user account.
But not having had to do it before, how do I change to this second user so that I can try accessing the drives?
When used as 2nd user, the Flash Drive didn't load, but it was shown as a USB (with a fault) in Device Manger.
I have tried inserting the Flash Drives in both the Computers rear and front USB ports and the same still happens.
Both the SanDisk USB's are identified as Cruzer Micro in Device Manager, and the Elite ones are just indicated USB.
In both cases on clicking on the name it says drivers are not installed!
My Peak 2.0 Flash Drive still works perfectly on this computer, and all of them work and open ok on my wife's Lap Top, which also operates on Windows 7.
The SanDisk Flash Drives have previously opened and operated correctly since I bought the computer in December 2013.
Several days ago I did contact CSL to see if they had any ideas about rectifying the fault.
All they suggested was doing a full install again, which I am loathed to do and have to re-install all my additional programs, when the computer works very well, apart from this Flash Drive reading problem!
The USB's also work fine for any other operation like updating my Sat Nav, exercise wrist watch and transferring pictures from my camera.
I don't know if the following will help:-
But when I checked the USB drivers drive path for my Flash Drives on my wife Lap Top it gave the following:-
Digital Signed Microsoft Windows
On checking my Drivers folder, I couldn't find UMDF\WpdFs.dll
but found a WpdFs.dll folder.
Also, I couldn't find anything on WUDFRD.sys.
It also said on mine when checking the driver that it wasn't digitally signed!
CSL can be found at csl-computers.com.
However, the disc that came with my computer is from www.BIOSTAR.COM.TW INTEL SERIES.
This contains the Manual and Drivers.
I opened the chipset folder in drivers and it gave me the following sub-folders:- Audio, Chip Set, CIR, LAN, USB30.
When in Chip Set, the Sub Folders:- Graphics, HECI, Infinst, SATA.
The Infinist folder seemed the most appropriate one, which had the most files in it, so I installed this and re-booted.
The Flash Drives are still not opening!
I have checked the contents of the USB30 Sub-folder and there are 2 further folder:- ASMEDIA which contains a setup.exe and one called:-
NEC which also has a setup.exe folder.
Should I try re-installing both these folders from the USB30 folder?
I've re-installed these 2 setup.exe files and re-booted.
Device manager still says USB driver not installed - code 28!
I can't see any.
On clicking on the disc it gives a list of folders and files, one of which is setup.exe.
I assume that clicking on that, it should to a general install of everything on the disc.
Shall I try doing that, to see if it recovers something hidden somewhere else on the disc?
Absolutely no change whatsoever!
I'm sorry that I have taken up half a day of your time, trying all you can with your help and suggestions, to hopefully resolve my problem, which in the end wasn't achievable!
But thank you anyway.
Just one further question.
When installing the Windows 7 installation disc, does it give you the option to Repair an existing installation, just like it did in Windows XP?
Thank you for that.
I did't know what SFC /Scannow was actually doing.
I suppose in doing that, it didn't actually repair/replace what is obviously missing in my `C` drive, which I imagine a full install would put back.