lsd process causing 100% cpu and beachballing

Hi guys,

I hope someone can help me with this. My computer has recently started using 100% cpu on a process called "lsd". It totally locks up my computer and i have to hard restart it by holding in the power button. I can force it to do this is i select a video and then choose "open with" as it is pulling up the subsequent windows, it will beachball and go to 100% cpu because of this process.

I read something Linc Davis had previously posted about console, so i have gone there and here is the dump for "lsd":

11/05/2016 10:51:39.103 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.107 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.110 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.113 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.602 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.605 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.608 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.612 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.615 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:39.619 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:49.392 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:49.451 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:49.467 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:49.484 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

11/05/2016 10:51:49.502 lsd[354]: LaunchServices: Could not store lsd-identifiers file at /private/var/db/lsd/com.apple.lsdschemes.plist

They are all the same so i wont post them all but there are 4000 of them in the last 20 minutes alone.

Here is my imac:

Many thanks for ANY help anyone can give me 🙂

hardtofin