Inaccessible shortcuts

Hello,

1/ Check if you can restore the quarantine of Malwarebytes Anti-Malware
Avoid this overly aggressive software
Adw Cleaner is more than sufficient
Otherwise, perform a system restore

2/ For a slow PC:
What is your antivirus? Only 1 antivirus
Update the drivers on Driver Cloud
Run CCleaner for cleaning
Enable all processors on startup of Windows
Disable SmartScreen
Disable the peer-to-peer feature of Windows Update
And many others...
This may seem a bit complicated to you... I will explain later if needed

First, try the first solution

--
pistouri

a possibility: update the pc
start button
settings
updates and security
recovery

for peer to peer:
start button
settings
updates and security
windows update
advanced options
choose how updates are delivered
pc on my local network

a very good tip that will be read by other internet users:

If you find that Windows 10 is a bit slow, that your applications don't start very quickly, that your builds take time, here’s a small trick to speed things up.
right-click on the start button (or windows+x)
search
type: Performance
Then click on: Adjust the appearance and performance of Windows
Then click on the "Advanced" tab (to see the number of your memory, it’s simply the size of the swap file)
click on "Change" (a little lower)
you can then see at the bottom of this window that Windows recommends using 1151 MB or another number depending on your computer's virtual memory.
uncheck the box that says "Automatic management"
and enter the same number in the custom size as the one indicated in "Recommended" at the bottom of the window
put the same number in both boxes: initial size (MB) maximum size (MB)
example: recommended 2024 MB
click ok
restart your computer

also:

The Runtime broker is the application responsible for controlling tasks running in the background such as Metro applications among others. Runtime broker requires a certain amount of memory and constantly uses the processor. So even if you don't launch any applications, your processor will always be very active. For mid-range computers, where every bit of memory is important, disabling Runtime broker is a very effective solution to speed up the operating system and utilize the processor at almost 100%. Here’s how to proceed

right-click on the start button or press the Windows+X keyboard shortcut
run
type: Regedit
In the registry click on the "HKEY-LOCAL-MACHINE" key then on "System" and finally on "Services"
In the "Services" part, look for the key "Time broker" (the keys are listed in alphabetical order, so look under the letter "T"). Click on "Time broker" then in the right window click on "Start" with the right mouse button and activate the "Modify" command
Change the value of the key from 3 to 4 to disable "Runtime broker" and allow your processor to free up and thus speed up Windows 10.

ps: At my place, after SYSTEM, I click on CurrentControlSet to access Services. If that can help…
For those who can't find the services folder go to SYSTEM > ControlSet001 > Services > and follow the tutorial again

--
scalpel

For recovery and reinstallation, it can take quite a long time (between 3 and 9 hours... yes... it's the updates that take time and not your PC). Generally, 1 to 2 hours is enough: preferably do it in the morning early... it will go faster.
But well, since things are going better... continue like that for now.
Remember to restart your box twice a month... the internet connection will be in its best shape if there are no viruses or malware.
A tip:
Restart your computer twice a week instead of turning it off
because Windows has memory and saves your settings.

--
pistouri

Update the PC to restore the default settings
Duration: 30 minutes maximum
Some software will need to be reinstalled, this will be indicated during the process
There is also a software: reassociation online

Otherwise, repair the shortcut icons:
Miniature and Icon Cache Rebuilder for Windows 10 is a portable freeware that will purge, clear, and delete your thumbnail and Icon Cache Rebuilder in one click.

If your icons appear empty or look corrupted or do not refresh properly when they should, it is entirely possible that your icon cache database might be damaged in Windows 10 on your PC. The same goes for thumbnails too. If they are not displayed properly, then they may have been corrupted. In such a scenario, you may need to delete the cache files in order to rebuild the icon cache and clear the thumbnail cache.
Once you have downloaded the zip file, extract its contents and run the .exe file. You may want to create a system restore point first.

If you encounter issues with thumbnails or icons not displaying correctly, open Miniature and Icon Cache Rebuilder, check the icon cache Delete or Delete Thumbnail Cache or both, depending on your needs.

Then, click on Rebuild, wait for Explorer to refresh.
Restart your computer. Once your computer restarts, it will build a new cache.
Note that ending Icon Cache Rebuilder before it finishes may result in Windows giving you a user profile error because it needs to refresh Explorer and restart your computer to rebuild the Icon cache.
Download here:
https://www.thewindowsclub.com/your-download-of-icr-will-start-in-5-seconds
tool