how to activate win 8 1 pro

{"cid":"91187306","title":"win 10 pro oem key with online activation","imgUrl":"https:\/\/img.ismap.com\/nimg\/72\/af\/2dd79a15e94c27cf62d702f5fead-200x200-1.jpg","attrs":{"Price":"Upon Request","Brand Name":"Microsoft","Model Number":"Brand New","Minimum Order Quantity":"10pcs","Delivery Time":"1-2 Days","Certification":"Original Microsoft","Place of Origin":"USA \/ Singapore \/ Puerto Rico \/ Ireland","Payment Terms":"PayPay, Skrill, Western Union, T\/T, DhGate, WebMoney, MoneyGram","Packaging Details":"Factory Sealed Retail Box \/ OEM","Supply Ability":"10000pcs per month"}}

{"cid":"91199486","title":"Android 13 Iboard Interactive Whiteboard Win Touch Panel Display Smart Monitor For Education Teaching","imgUrl":"https:\/\/img.ismap.com\/nimg\/08\/02\/07399354f1211f33eff29652310c-200x200-1.jpg","attrs":{"Price":"EXW+2000-2500USD\/PC","Brand Name":"iBoard or OEM","Model Number":"TE-YL-98","Minimum Order Quantity":"10","Delivery Time":"30 days","Certification":"CCC, CE, FCC, RoHS, Reach, OHSAS, ISO9001, ISO14001","Place of Origin":"Shenzhen, CHINA","Payment Terms":"T\/T, L\/C","Supply Ability":"10000 units per month","Packaging Details":"Carton Package","Android version":"13","Touch technology":"Infrared touch","Touch points":"10\/20\/40\/50 points optional","WIN OS":"optional to be with 10\/11 Pro actived","Workable size":"55\/65\/75\/86\/98\/105\/110 inch","Applications":"school teaching\/education equipment\/video meeting\/presentation,etc.","Aspect Radio":"16:10, 16:9...","Interface":"USB, VGA, RS232, HDMI","Screen Size":"65\",75\",86\", 98\"","Multi-Touch":"Up to 40 points","Hotkeys":"Two sides hotkeys","Shipping Way":"Sea Shipping Air Freight Truck Freight","Touch Points":"20 points","Warranty":"1 year","Power Supply":"AC 100-240V, 50\/60Hz","Operation System":"Andriod\/Windows\/Linux\/Mac.etc.","Accuracy":"2mm","Mobile Stand":"Optional","Colors":"Black Or OEM"}}

{"cid":"91154364","title":"Multi language Microsoft\u2002Win\u200210 Pro 64bit OEM Software DVD + OEM key Activation Online","imgUrl":"https:\/\/img.ismap.com\/nimg\/4e\/35\/56c4289f8a2345745080bbebab93-200x200-1.jpg","attrs":{"Price":"Contact Us Directly","Brand Name":"microsoft","Model Number":"Customize","Minimum Order Quantity":"10 pcs","Delivery Time":"24 hours after payment","Certification":"Microsoft Certificate","Place of Origin":"Made in USA\/Ireland\/Germany\/Turkey\/Puerto Rico\/Singapore\/HK\/Egypt","Payment Terms":", Western Union, MoneyGram, T\/T","Supply Ability":"10000 pcs \/per month","Packaging Details":"Factory Sealed Retail box \/ OEM","Language":"No Language Limitation\/Customize","Activation":"100% Online Activation Globally"}}