This describes how to change the language on a Windows VPS

Step 1 Open Settings
Step 2 Click Time & Language
Step 3 Click language in the left panel
Step 4 On the language screen on the right, click "Add a language".
Step 5 On the "Choose a language to install" screen, select your language from the list and click next
Step 6 On the install language features screen, check if all items are selected and click install.
Step 7 Click options of the added language
Step 8 On the Language options: screen, check if "Language pack installed" is displayed in the "Language Pack" section and click left arrow icon at the top left corner.
Step 9 On the Language screen, select your language from the Windows display language pull-down menu and click Date & time from the left pane.
Step 10 On the Date & time screen, select your time zone from the Time zone pull-down menu.
Step 11 Select Region from the left pane and select your region from the Country or region pull-down menu.
Step 12 Scroll down on the Region screen and click Additional date, time, & regional settings under "Related settings".
Step 13 On the Clock and Region window, click Region.
Step 14 On the Region window, open the Administrative tab and click Copy settings in the "Welcome screen and new user accounts" section.
Step 15 On the Welcome screen and new user accounts settings screen, select all items under the "Copy your current setting to" section and click OK.
Step 16 On the Administrative tab screen, click Change system locale in the "Language for non-Unicode programs" section.
Step 17 On the Region Settings screen, select your region from the Current system locale pull-down menu and click OK.
Step 18 On the dialog box requests restart, click Restart now to restart the system.
Step 19 After restart completed, check if the language of interfaces such as logon screen is changed to the selected language.