The finest British talent here, with CISSP and CompTIA++ certifications and an outstanding background in malware research, detection and removal with a past employer, I can guarantee a like-new system.
I shall mention, no software will be required as a remote inspection of the system can verify my hypothesis as to which type of infection you have. Various tools will be parsed via the remote channel onto your workstation to disinfect your systems.
Please message me so I can discuss the threat further.
Kind regards,
Blaine.