Windows 10 Built-in apps ans start menu problem

Hello everyone, since few weeks, I started notice many problems on my Win 10, after 2 months of my update to windows 10 version 1511 (official), these problems are:
-I can't add any tile to the start menu and can't remove or move them, and their context menu has less options.
-Some built-in apps have a problem like "Microsoft Photos", "Microsoft Camera"..... I can't open any photo or take a picture using them. And their name in the start menu is like (@{Microsoft.Windows.Photos_16.122.14020.0_x86_8wekyb3d8bbwe?ms-resource://Microsoft.Windows.Photos/Resources/AppFriendlyName/}), I tried to make an update on Windows store but I couldn't update them because I had an error: 0x80070003, I tried to reinstall and uninstall them using powershell but it didn't work.
Can someone help me in my 2 problems and thank you for your help!

Please do the suggestions in the order they are listed :

1. Do a system file check to look for corrupt files. If any found, it will try to repair.
Right click at Start button > click Command Prompt (Admin) > at the flashing prompt, copy/paste this.......
sfc /scannow

> press Enter.
It will take quite sometime.
When finished, it will give you one of the 3 reports...............(paraphrasing)
1. No integrity violation.
2. Found corrupt files and repair successful.
3. Found corrupt files but unable to repair.

If the report is #1, your solution lies elsewhere.
If the report is #2, check if your problems have been resolved.
If the report is #3, use this method................
In the same Command Prompt (Admin) windows, copy and paste this command...........

dism /online /cleanup-image /restorehealth

> press Enter.
Again it will take some time.
When finished, it will give you a report.
If you get a "Source files could not be found" message, please post back. There is a fix for that.

2. If the above does not fix, do a Repair Install.
Repair Install Windows 10 with an In-place Upgrade