Re: Can I reinstall iTunes on a Mac?
Yes you can. As I guess your query, such kinds of issues were raised when the security software interferes with the restore and update process. For resolving this issue just you have to followTroubleshooting security software issues to solve this query.
And, basically such errors may be a hardware issue. If the errors are still same as on another compute, it means your device may require a service."
If currently your device is running any anti-virus or other firewall from 3rd parties on your computer, then make them disable and restore process again. Might be the accessibility will be the cause of any one of these security applications is interfering with the iPhone's facility to authenticate with Apple's servers.