Research conducted by consumer group Which? reveals that at least 50% of Windows 10 users have identified a bug in their operating system.
21% of respondents said software compatibility issues are the most common problem with Windows 10, with apps not working properly or at all. 16% report hardware issues, such as printers and speakers crashing after the upgrade.
Other errors include emails that don't sync, personal files that have been removed, slowdowns, and complete computer startup failures.
The results of the investigation, in essence, force Microsoft to "respect users' rights and pay compensation to those who have experienced a malfunction with Windows 10."

The organization says it has already reached out to Microsoft to discuss the increasing number of complaints it has received from customers whose devices were upgraded to Windows 10, and the software giant said it would "look into the suggestions.".
The consumer protection officer stressed that consumers should receive updates on the quality of updates, noting that if broken patches are sent, their computers should be repaired free of charge.
Users should be able to choose whether or not to receive updates, and Microsoft should offer clear and free customer support on its website.
