Is your HTC touch viva mobile device is responding incorrectly, running a little sluggishly, freezing, slow, or any other problem with the phone not solve in any other way? There is a option available to resolve these problems, perform a hard reset. After performing hard reset your HTC Touch Viva windows phone is stored to its default settings (the way it was when you purchased it and turned it ON). Any application you installed, data you entered and settings you customized on your mobile phone will be lost. Make sure that any additional installed programs and any other data files (that you do not want to lose) have been backed up before you perform a hard reset.