Want To know full details of your computer Sometimes, we may need to know details of our computer. Here is method for that, Steps: 1. Start Command Prompt ( Start > Run > CMD ) 2. Type Systeminfo and press Enter. To save this details to a text file : 3. Type Systeminfo>C:\systeminfo.txt This command will save a text file named systeminfo in C drive. You can change the path for you use.