Can I use turbo tax on a laptop with Windows 7?

See https://turbotax.intuit.com/personal-taxes/cd-download/tta-system-requirements

Earlier editions of TurboTax will install and can be run but (critical) updates will not be available.

No current version of TurboTax will work in Windows 7, neither the CD/Download software nor TurboTax Online.

Window System Requirements
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-windows-software/00/26175

Mac System Requirements
https://ttlc.intuit.com/community/system-requirements/help/minimum-system-requirements-for-turbotax-mac-software/00/25609

Online System Requirements
https://ttlc.intuit.com/community/system-requirements/help/turbotax-online-system-requirements/00/25787