A slow-loading Windows operating system is unlikely to cause a serious loss of time. But, if the computer has to be turned on or rebooted quite often (2, 3, 4 or more times a day), the extra seconds and even minutes start to get a little annoying. Also, Windows boot time longer than average (60-90 seconds for HDD) often gives the user a feeling of hardware or software problems. Sometimes - it is quite justified, because the system, indeed, can take longer to boot due to problems with the software, motherboard and even the cooling system. To troubleshoot problems, it is worth getting to know their root causes and solutions.


One of the most common causes of Windows startup slowdowns is the default or user-set boot priority. If the system boots from the system disk, the time will be minimal. But, when by default in the BIOS (or UEFI) boot from a USB flash drive or DVD is selected, an attempt is made first from external media - and only then from an HDD or SSD. This takes a few extra seconds, which add to the total startup time.

Another reason why loading slows down is programs that are loaded automatically along with the system. You can find their list in the "Startup" section by first calling up the configuration window (simultaneously pressing Win + R and entering "msconfig"), and then opening the appropriate tab. It is worth removing everything unnecessary from the list - including clients of social networks and games, browsers and links. It is worth leaving only antivirus programs.


Sometimes the problem may lie with an incorrectly installed operating system. The reasons are the unaccounted bit depth (32 instead of 64), the location in the same partition of several Windows or even other operating systems such as Linux. The problem is eliminated by removing one system or installing Windows on a separate disk.

Loading can also slow down due to the installation of "pirated" Windows, the use of which is often a real "lottery". One such version can work fine, while another will lead not only to slowdowns, but even to malware on the PC.

Loading may also slow down if the hardware of the computer does not match the selected platform version. For example, for Windows 10, preferably not 4 GB of RAM and at least a dual-core processor. For the "seven" 1.5-2 GB of RAM and a single-core chip may be enough. They solve the problem by choosing Windows that matches the capabilities of the PC - or, conversely, by upgrading the computer.


The problem may also lie in a malfunctioning processor or motherboard. For example, the CPU often causes slow boot times when thermal paste dries out. And the motherboard may have a problem with capacitors that swell, shrink, and even explode. The issue is solved by applying a new thermal insulation of the processor and replacing the "motherboard" elements, respectively.

The PSU is causing a boot problem due to a lack of power. The solution to the problem is to install a new power supply unit. And, if the computer's cooling system does not work properly, the elements of the computer may overheat, which slows down not only loading, but also the work of other programs, and even games. The issue is solved by cleaning the system unit from dust, installing new coolers and replacing old ones.


The system disk also causes problems with starting the operating system. Usually this is a lack of space on the system partition. You can fix the situation by freeing up space - manually or using special utilities such as Auslogics Boostspeed, CCleaner, SpeedUpMyPC or AVG Tune Up.

If the problem is caused by bad sectors, the CrustalDiscInfo program will help you to check their condition. And its solution is to replace the carrier with a new one. When buying, it is advisable to choose an SSD drive on which Windows will be installed. Booting from a solid state drive is much faster, with an average of about 25 seconds from pressing a button to starting the system.

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