Notes about the SQM file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries
, unused processes and other unfavourable system settings to identify slowdown issues.
The SQM file type is primarily associated with 'Windows Live' by Microsoft Corporation. These files are typically hidden and written to the root directory of the drive. FILExt understands that the location the files are written may change in the future. Some other Microsoft products may drop these files as well. Reportedly you can turn the writing of sqmdata.sqm and sqmnoopt.sqm files off by going to Help, Customer Experience Improvement Program in Messenger and then turning them off from there.