It's easy to touch-enable your existing PC without breaking the bank. Here are a few recommendation,along with some pros and cons for you to note.

To enable the touchscreen on Windows 11, open the Device Manager, expand the ‘Human Interface Devices’ section, and find the ‘HID-compliant touch screen.’ ...

If the Touch Keyboard and Handwriting Panel Service is disabled, then this post will show you how to enable this Service in Windows 11/10.