Phone has become very sluggish and some apps will not install (Skype is one).
two types of reset you can try
One is a soft reset where you press both power and volume down buttons at the same time until phone restarts. Then try what you wanted to try
Second is where you do a hard reset but this means all your data, settings, apps will be removed unless you've done a backup
Could you share which phone you are using and which OS you're on? Before you do a hard reset
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