Since I updated some windows on pc has become very very slow on start up and freezes quite a lot thi

[Bnewland]

Since updated Windows my computer has become very very slow I have checked all components and drives everything passed it also freezes a lot then I have to do a reboot 

[Riddle_Decipher]

@Bnewland Welcome to HP Community!

Microsoft regularly releases cumulative updates with refinements. Install latest windows update that may contain the bug fix causing windows not responding or freezes.

• Press Windows + I to open windows settings,
• Click Update & security than Windows update,
• Now click check for updates button to install the latest windows updates.
• After that restart windows and check windows running smoothly.

If the issue persists, please perform a clean boot using the below steps:

• Press Windows + R, type msconfig and ok to open system configuration utility
• On the General tab, click Selective startup.
• Clear the Load startup items check box.
• Click the Services tab.
• Select the Hide all Microsoft services check box (at the bottom).
• Click Disable all, Click OK.
• Restart windows, and check windows running smoothly.
• If yes then one of the services causing the problem.

Repair corrupt system files using the below steps if the above didn't help:

• Type cmd on start menu search,
• from search results Right click on command prompt select run as administrator,
• Type command sfc /scannow and press enter key.
• This will start scanning windows system files for corruption.
• If found any the sfc utility attempts to repair it by copying a cached copy of each corrupted file from the %WinDir% \system32\dllcache folder.
• Wait until 100% complete the scanning process.

If no corrupted system files were found in the previous state, then I suggest you to try the following steps:

• Again open the command prompt and run DISM command below

                DISM.exe /Online /Cleanup-image /Restorehealth

• This will repair Windows images, including those used for Windows PE, Windows Recovery Environment (Windows RE) and Windows Setup.
• Close the command prompt and restart the PC and check if it works.

Keep me posted, as I (Or a trusted colleague) shall follow-up on this case to ensure the concern has been addressed, 

And your device is up and running again, only in case you don't get back to us, first! 

That said, If the information I've provided was helpful, give us some reinforcement by clicking the solution and kudos buttons, 

That'll help us, and others see that we've got the answers!

Good Luck.