Preparing for W10 Upgrade?

How should I prepare for Windows 10 upgrade on this PC?

Specs:

AMD Athlon x4 860K @ 4GHz
Nvidia Geforce GTX 750Ti
1TB 7200RPM HDD
8GB DDR3 1600MHz RAM
Windows 7 Ultimate 64-bit SP1 current OS

Why do I ask this? Well, the last time I attempted the upgrade..I suffered from the dreaded "black screen" issue. After logging into the desktop, the cursor would freeze followed by a black screen straight after - this would occur around 30-60seconds after logging into Windows.

I'm guessing it has something to do with the currently installed driver that was on the system (since it's for Windows 7). It must have malfunctioned or something after booting.

Would removing the currently-installed driver from my system before initiating the upgrade be safe to do? Will Windows 7 revert back to the generic VGA driver on boot? If so, then upgrading to Windows 10 might be possible. I just needed to clarify before deleting the driver.

This system doesn't have any integrated graphics to fall back on, so the dedicated GPU is a must.

To add to Simrick's suggestions, it's a good idea to uninstall any old software you may no longer use; less chances of conflict with less software.
Don't be shocked if the initial install isn't completely stable, making it necessary to do an in-place upgrade to repair the install.
Once into Win 10 I highly recommend uninstalling any third-party graphics drivers that Windows Update may have installed with DDU and reinstall from the manufacturers website (in your case Nvidia).
As mentioned above it's imperative that any third-party anti-virus be uninstalled before going ahead with the install. Best of luck!

Also have a look at my post here. The most important step is to uncheck the "Search for Updates" box at Windows Setup. You don't want Windows Update start messing with drivers before you successfully upgrade to Windows 10. In my post I mention that CUDA is not working properly in drivers 340.xx and later. I found a workaround. You can copy or download manually the old nvcuvenc.dll files (32-bit and 64-bit version), then install latest driver. Any application requiring old CUDA support can work if you copy-paste the dll file in its installation folder. If the application is 32-bit (eg Nero Vision) copy the 32-bit version in the application folder. If it is 64-bit copy the 64-bit version. Next time you launch the application CUDA will work without any issue. If you have a pre 340.xx driver installed, the 32-bit version is in C:\Windows\System32 and the 64-bit version is in C:\Windows\SysWOW64 Backup them from there before you install the latest version as they will be deleted then.

Oh I had Speccy installed on my system when I did the upgrade. Does this do something to Windows 10 or something?

I did get some black screen problems during the upgrade as well. I just waited a bit for the HDD light to go inactive before switching it off and it went ahead with the installation.

I just thought that the Nvidia driver that was already installed on my system somehow messed up Windows 10 and just crashed (giving a black screen). That's why I asked if removing that driver before upgrading would help at all.

I wasn't able to head to the website and download the correct driver because it gave a black screen before I could do anything of significance. I had to revert back to Windows 7.