I used to have access to classic. seemed to lose it. tried to re-install but since the new version in October 2020 I need windows 10 but my Surface doesn't have windows 10. I have windows 8.1 pro. Sanchay says one of you lovely people in this community may be able to provide me a link?
The last version of LR Classic that supported Windows 8.1 was LR 7. Unfortunately, Adobe doesn't make LR 7 available for download and I don't know of anywhere else you can download it. Adobe tech support should have known that -- shame on them.
But are you sure you had LR Classic, which required a monthly subscription? Perhaps you had LR 6 or earlier, which you purchased outright with a one-time payment? You can download LR 6 from here: