How to restrict content on Microsoft devices (Windows 10 and Xbox One)

Go to family.microsoft.com
Sign in with your Microsoft account
Find your child’s name (Microsoft Family Group needs to be created, instructions here)
Select Content restrictions
Web browsing > Block inappropriate websites > On
To always block specific sites, add their URLs under Always blocked.
To only allow specific websites, check the box next to Only allow these websites.

Go to family.microsoft.com and sign in with your adult Microsoft account.
Find your child’s name and select Content restrictions.
Go to Apps, games & media > Block inappropriate apps, games & media > On. Under Allow apps and games rated for > select the age limit for your child.
Add apps to the Always allowed under Content restrictions.
Block apps downloaded without parental permission on the Activity page. New apps need your permission, you can respond to kids’ requests from your email or on family.microsoft.com.
To monitor activity: Activity reporting > On

Sign in to family.microsoft.com with your parent Microsoft account.
Find the child’s name > Spending.
Ask a parent > Needs organizer approval to buy things > On.
To approve or deny purchases through email: Email me when they get stuff > On.

Web filtering:

Sign in on the console with an adult account.
Press the Xbox button > System > Settings > Account > Family
Select the child account > Web filtering
Choose the level of web filtering. (Note: Specific websites can only be added to the Always allowed list on family.microsoft.com.)

Mature content:

Sign in with your parent account
Press the Xbox button > System > Settings > Account > Family.
Select the child account > Access to content > select the appropriate age limit. By default, your child’s restrictions are set to their age on their Microsoft account.
To allow a blocked app or game your child requests: family.microsoft.com > Content restrictions > approve it and add it to the Always allowed
Block apps on the Activity page. They’ll need your permission to use it again, allow or deny requests from your email or on family.microsoft.com.
To monitor their XBox activity: Activity page > Activity reporting > On.

Downloads:

Sign in to the Xbox One with an adult’s Microsoft account.
Press the Xbox button > Settings > Account > Family settings > Manage family members > choose a child account.
Privacy & online safety > Xbox Live privacy > View details & customize > Buy & download > Ask a parent box > On.
To change default child settings: Xbox Live privacy > Child defaults or Teen defaults