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#81
When adding registry key doesn't work, this worked for me
I had posted here many times when this post was fresh how adding JumpListItems_Maximum to HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced didn't have any effect for me.
I eventually found the solution, but never posted back here. Following the Creators Update, this broke again and I couldn't remember what I had done. I've since re-figured it out and thought I should add it here for the few people who are in the same boat.
The problem is the registry key. For whatever reason, some systems require the key to be in the HKLM registry, instead (maybe in addition, I've not tried it w/o both) of the HKCU registry. So just follow all of the same steps outlined by the main solution in this thread, but add the JumpListItems_Maximum key to:
\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\Advanced
Again, I haven't tried it without also having this value in the same place in HKCU, so not sure if only this one matters or it requires both, but this instantly fixed it for me. No need to restart or log off or anything. Add the key with a value of 25 (use whatever # you want), right click on the item in the Taskbar and it jumped form 11-12 items to 25.