I need to find a software running all the time in background that can watch a folder (e.g. D:\DATA\) and each time:

• a file is modified
• a new file is created
• a file is deleted

then the file will be automatically updated/uploaded to a cloud storage, without user interaction (done quietly in background task).

The software has to be working on Windows XP (it's for a computer - not mine - that I cannot update soon). Neither Dropbox nor Google Drive support XP anymore.

Would you have a recommendation?

PS: I've read this topic but not sure which one still applies/which one works well.