There will be no more visiting days in boarding schools in third term, Education Cabinet Secretary Fred Matiang'i has said.
Prayer days, mid terms and other social activities have also been abolished.
Dr Matiang'i said on Wednesday that the move is aimed at curbing cheating in KCPE and KCSE examinations.
Over 5,000 2015 KCSE results were canceled over malpractices.
Prior and during the exams, exam questions circulated on social media, a phenomenon that raised concern among Education stakeholders and Kenyans over the credibility of the national exams.
In March 2016, Kenya National Examination Council (Knec) board was disbanded by Dr Matiang'i over widespread exam malpractices.
Former University of Nairobi Vice-Chancellor Prof George Magoha was appointed as the new chairman of the board.
He replaced Prof Kabiru Kinyanjui, who was sacked.
The government also ordered the arrest of the council’s chief executive officer Joseph Kivilu and eight other senior officer over examination irregularities.