lsm.exe is a program which is probably legit. So, if lsm.exe is on your laptop or desktop computer, it is probably ok, and will NOT cause problems. Even if your system is virus-free, it is still recommended to purchase a good antivirus with a good track record, in order to yourself your PC against potential security problems.
Normally, this application is stored in C:\Windows\System32\lsm.exe.
The MD5 fingerprint for this program is 9662ee182644511439f1c53745dc1c88.
This program is NOT a Windows service. This is good.
lsm.exe seems to have something to do with Windows SFC (System File Checker) or Windows File Protection.
This is a x64 executable. It runs using the full capacity of modern CPUs.
lsm.exe is digitally signed. Today most legit programs are digitally signed.
The digital signature found in lsm.exe verifies as ok. This is most likely a clean, ok program.
Digital certificate name: Microsoft Windows
Certificate's issuer name: Microsoft Windows Verification PCA
This application does NOT have an uninstall command stored in registry.