origin is not installed and is required to play this game plsreinstall origin

@Basilhs007  Try running Origin as an administrator first: right-click on the shortcut and select "Run as administrator."  Then click Play within Origin.  If that doesn't help, run Origin ad an admin, then run Sims 4 as an admin as well, from its desktop shortcut.

tried it but unfortunately doesnt make any difference 

@Basilhs007  Try disabling Origin in-game: hover over your username, select Application Settings, then the Origin in-game header, and disable the option at the top.

If that doesn't help, either disable Windows Defender's Controlled Folder Access, or add exceptions for Origin.exe, TS4_x64.exe, and TS4.exe.

https://crinrict.com/blog/2019/03/windows-10-defender-controlled-folder-access.html

If you have a third-party antivirus running, please try disabling that intead, at least long enough to test.  It's often not enough to only set exceptions anymore.

If none of this helps, do a clean uninstall and reinstall of Origin:

• First, clear Origin's cache.
• Right-click on the Task Bar and open the Task Manager.  Scroll through looking for Origin entries.  If you find any, click on them and End Task.
• Download Revo Uninstaller (the free version is fine) from here.
• Launch Revo, select Origin from the list, and click Uninstall.
• When it finishes uninstalling, select "Moderate" under "scanning modes," and click Scan.
• If Revo finds any remaining registry entries, select all, delete, and click Next.
• Revo will display "Remaining Data and Folders.  Select all of them except for the "Origin Games" folder, if it appears.  (This is where Sims 4 and other Origin games are installed by default.)  Delete the rest.
• Close Revo, and restart your computer.

Next, download the full Origin installer and run it.  Here's the direct download link:

http://download.dm.origin.com/origin/live/OriginSetup.exe

Be sure to run both the installer and Origin itself as an admin: right-click on each and select "Run as Administrator."

@puzzlezaddictty again for the response but it seems not to work 

im dissapointed wanted to play the game after  weeks of work for the uni

@Basilhs007  Try creating a new admin user account on your computer and playing in that.  You shouldn't need to redownload anything, although you won't be able to access your saves or other content.  (That can be addressed later if this works.)

When playing in the new user account, please run Origin as an admin, and disable your antivirus as well.

If that doesn't help, please run a dxdiag and attach it to a post.

https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/

What did you do exactly? did u have to reinstall the sims?