Lag post windows update

[HosamaneVikram]

I have always faced issue post windows update. Takes an awful amount of time for system to start which goes to 20 to 30 minutes. Anyone has an idea why this is happening.

[WAWood]

@HosamaneVikram 

Windows Update, especially in Win10, loads your PC up with files and that could cause slowdown in performance.

Here are some things you can do to recover some of the disk space:
http://www.tenforums.com/tutorials/3012-disk-cleanup-open-use-windows-10-a.html
http://winaero.com/blog/how-to-clean-up-winsxs-folder-in-windows-10/

Also, the community Win10 Forums has the following suggestions:
https://www.tenforums.com/tutorials/83441-free-up-drive-space-windows-10-a.html

In addition, I have found the utility Cleanmgr+ to have LOTS of options for removing Windows junk, including log files. I use it practically every day. You can get it from here: https://www.getclone.app/download/category/11-cleanmgr

Also, there is a freeware app known as Wise Disk Cleaner. I use it every day to get rid of junk files: https://www.wisecleaner.com/wise-disk-cleaner.html

See if that helps