uefi not loading after SLIC integration, how to revive?

Question

UEFI

Hello!
There is equipment in the form of a biostar j1800NH3 ver: 6.0 motherboard, 2 gb of RAM and a 500 gb hard drive.
It was 7-ka, it’s not known which assembly, but oh well, they asked me to reinstall Windows, since the viruses had eaten the old one outrageously and there was practically nothing to restore. First encountered in UEFI, I shoveled a lot of forums, installed Windows tighter than 7-ku 64 bits.
Everything went well and the final touch from the customer was the request to activate the whole thing. Then the problems started, the usual lazy activators did not work, I realized that I needed to integrate Slic, I stumbled upon WindSLIC UEFI, downloaded it, applied it and rebooted the computer :)
Up to this point, the computer rebooted and there were no problems, but after integration, the computer does not boot at the UEFI boot stage, that is, a picture with a boot selection, del, f9, f12, tab, I don’t know what this screen is called, in general, it gets further does not load and only reacts to tab (skip and go to further loading) after which it also hangs .... I noticed some letters and numbers from the bottom right, first A5 appears then changes to 99 and that's it ....
I tried to reset the BIOS by setting jumpers in positions for reset, nooool effect ... Who can tell me how to revive the dead man ???