When you install new programs and drivers, there is a chance that something will go wrong and the system will not function normally. Even if you uninstall the program, the system will no longer function as before. Here's how to easily restore your system to normal operation on Windows and Mac. Read on.
Steps
Method 1 of 2: Windows System Restore

Step 1. Let's talk about how the system restore process works
Windows creates a system backup every 7 days and whenever you install system updates. In other words, you can easily revert to a previously saved working version of the system.
System Restore does not restore individual personal files that have been changed or deleted

Step 2. Run System Restore
Open the Start menu and type System Restore in the search bar. Select System Restore from the list of programs. Close all unnecessary windows and programs.

Step 3. Select the version of the system you want to restore
You will see the system save calendar on your computer. Select the desired date, that is, the moment when the system was still working normally.

Step 4. Wait for the system to recover
After completing the recovery, Windows will restart the computer.
Method 2 of 2: Mac OS X System Restore

Step 1. You have several options for system recovery
But, if you have not previously configured the creation of system backups in the Time Capsule program, for example, after installing the operating system, then you have few options. Then you just have to try to fix errors on the hard disk or reinstall the operating system.

Step 2. Configuring Time Capsule backups
Connect your external hard drive to your computer. It must be the same size or larger than your current hard drive. The system will ask you if you want to configure the new disk the same as the current one. Select the Create backup option from the list of options.
Select “Encryption” if you want to set a password for the backup file

Step 3. Wait for the backup to complete
You can set the option to automatically create system backups.

Step 4. Use the Time Machine utility to restore your system
Restart your Mac and hold down the Command + R button while the system boots. The System Restore Wizard will open. Select the settings you want. Click Recover.
- If you have multiple Time Capsule backups, you will be given a choice. Select the desired backup (preferably made when the system was still working normally).
- Unlike Windows, Time Capsule not only recovers the system itself, but all your files, even if they have been deleted or damaged.

Step 5. How to restore the system without a backup
If you have not made a backup with Time Capsula, you will have to format and reinstall the operating system. This can be done from the System Restore Wizard. Press Command Button + R while booting up your computer. Select the option to install the operating system.
- Note: You will need to be connected to the Internet to install Mac OS X without an installation disc.
- Reinstalling the operating system will erase all data on the disk, programs, and settings.