What do you mean you could not get any drivers? Are you aware that Windows 7 is a driver-complete OS in the installer and then when you get online to enable Automatically deliver drivers via Windows Update (Step 3)
and run all rounds of Important and Optional Windows Updates?
There shouldn't be more than one or two drivers still missing after all Updates, which can be imported from the PC or Device's Support downloads webpage. In thousands of installs we've helped with here, I don't remember ever not being able to find a driver.
Put your network adapter driver in the backup so you can install it to get online and do the Updates if it isn't provided by installer. Plugging in by wire increases the chance it will start up ready to connect.
It is also not necessary to pay someone to format your HD because we help with these operations every day here and are the top resource anywhere for this.
What I would do is boot the Windows 7 installer now to Clean Install Windows 7
making sure you have disabled Secure Boot in BIOS setup. If you want to install to UEFI then you'll also need to follow the special steps for UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums
- or you can Bypass UEFI to Install WIn7
This time put your network adapter driver in the backup so you can install it to get online quickly to do all the Updates, then let us know which drivers are still missing and we will help you find them if necessary. There shouldn't be more than one or two.