How to learn Solidworks in an online platform without downloading the software
Yes, you can learn solidworks on online platform. There are many online platform like coursera, edx, which provide online course of solidworks and also provide online software of the same. As per my experience, I join the online course of solidworks on coursera , they provide the licence key of online solidworks software for 3 months which you can use for practice. So you haven't to download solidworks software on your laptop and do not bother if your laptop supporting the software or not.