(formerly GrimeFighter) is part of the Smart scan option)
which reports performance issues such as unwanted applications, unnecessary files...and includes a junk cleaner, removal of bloatware and registry optimization.Avast Cleanup
Avast Cleanup is a new optimization tool which replaces the old GrimeFighter product that clears disk space and speeds up your system.
Avast GrimeFighter ("Scan for performance issues" option)
Avast GrimeFighter is a fully automated optimization tool for your computer that is meant to complement the services provided by Avast Antivirus 2015. Avast GrimeFighter provides an as-needed solution to clean and speed up your system by removing bloatware, trialware, adware, and other unwanted files so that your computer is running in its most optimal state.
Avast GrimeFighter Review
If you do not see a Scan for performance issues option upon opening Avast Antivirus 2015 user interface and selecting the Scan section, please check again in 5-10 minutes. If after 10 minutes you still do not see it and you meet all the system requirements, then Avast Antivirus 2015 has determined that your system is incompatible with running Avast GrimeFighter for other reasons.
About avast GrimeFighter 2015
avast! GrimeFighter displays the total amount of space occupied by junk and bloatware files, as well as the number of unnecessary apps that run at Windows startup. Additionally, you can also explore how many toolbars you can remove to speed up your browsers, and how many registry tweaks you can apply. If you choose to fix all the detected issues, your computer will enter a state similar to hibernation which enables avast! GrimeFighter to thoroughly analyze and fix your PC, without the possibility of you accidentally interfering with this process.
Will avast! GrimeFighter speed up my old PC?
GrimeFighter scans your Windows system for present ‘grime’ like malware, spyware, or intrusive toolbars. Also it scans for unnecessary programs which are being run at the start-up of your Windows, and optimizes your system settings to make your computer runs smoother. For making up more free space it scans for redundant files on your hard-drive...GrimeFighter scans your Windows system for present ‘grime’ like malware, spyware, or intrusive toolbars. Also it scans for unnecessary programs which are being run at the start-up of your Windows, and optimizes your system settings to make your computer runs smoother. For making up more free space it scans for redundant files on your hard-drive.
If you run an avast! GrimeFighter scan for the first time on your computer, and you don’t have a license yet, you’ll need to purchase it...avast! GrimeFighter comes as a 1, 2, or 3 year subscription. You can get it through avast! Antivirus 2014 products, and it’s also available as a standalone application.
Bleeping Computer DOES NOT recommend the use of registry cleaners/optimizers for several reasons.
Why you should not use Registry Cleaners and Optimization Tools
I would ignore fixing any issues related to the registry
for the reasons noted above and since Microsoft does not support the use of registry cleaners.