I never said safe mode works… if I did or there was a misunderstanding, I am sorry. But safe mode does not work… goes into black screen after winfows logo.
Let’s back up a bit.
First, you need to determine if your HDD is failing. I don’t know what BIOS checks you are running. I have built multiple PCs over the years and the only BIOS option I am aware of is tuning off/on SMART checking. I do recollect a few BIOSes that display SMART status info. Is that what you are referring to?
The only approved way of determining HDD status is first determine who the HDD manufacture is. Next download the manufacturer bootable diagnostic CD .iso image and burn the .iso image using burning software capable of created a bootable CD e.g. Nero, Roxio, WIN 7’s CD/DVD creator, etc.
Then boot from the CD ensuring your BIOS options are set to boot from CD/DVD drive first or press the appropriate select boot option key when the BIOS splash screen appears. Run a quick scan from the HDD diagnostic program. If no errors are found, then run a full scan. Note that a full scan on a large HDD could take many hours.
If no errors from the above steps are found, your HDD is not the problem. If your HDD is defective, you need to have it replaced and then reinstall WIN 7 since your don’t have an image backup of your existing HDD. A repair shop might be able to recover your existing data but be prepared to pay a large sum of money for that effort.
Well, in the bios there os a option to scan memory or hard disk. I presser hard disk and it failed the test.
I suspect the BIOS test you are performing is a SMART test.
My expeience is that SMART checks from the BIOS are not always reliable. Best you run the HDD manufacturer disk diagnostics.
Again you need to get this resolved before you do anything else.
How do I run the HDD diagnostic test?
For what it’s worth…
I have been getting the same black screen and cursor that lhui describes on my Win 7 32bit PC ever since I upgraded to Avast 6 Internet Security some time ago. I have both a user account and admin account which are password protected. The black screen occurs after the login screen appears and I enter my password and then hit enter, it is as though something is interferring with the loading of the desktop. I have the boot time & PUP scan enabled.
If I wait approximately 20 seconds after the login screen appears until the hard disk activity starts decreasing, and then enter my password and hit enter, the system continues to load my desktop and all is well. With the boot time & PUP scan turned off, I don’t need to wait until the hard disk activity decreases, I can just enter the password, hit enter and my desktop loads without a problem.
I am wondering if lhui has the boot time & PUP scan enabled and if maybe it is that that is causing the black screen and cursor, as in my case.