alg.exe is a program which is probably legit. So, if alg.exe is on your computer, it is probably ok, and will NOT cause problems. Even if your system is clean, it is still recommended to use a good antivirus with a good track record, in order to yourself your system against viruses and malware.
Usually, this program is located in C:\Windows\System32\alg.exe.
The MD5 fingerprint for this executable is dd69535d379f9e40ad0d6002887aaa99.
This application is a Windows service. This means it operates on your PC in background, usually without displaying anything to you. Most Windows services are useful programs, which provide useful functions to other programs or to the Windows Operating System.
alg.exe seems to have something to do with Windows SFC (System File Checker) or Windows File Protection.
64-bit code has been detected. This exe can use the full power of a modern computer processor.
alg.exe is digitally signed. Nowadays most virus-free programs are digitally signed.
The digital signature found in alg.exe is valid. This is very good.
Digital certificate name: Microsoft Windows
Certificate's issuer name: Microsoft Windows Production PCA 2011
This program does NOT have an uninstall command set up in registry.